Our Pick: pH-D Feminine Health

Check price on Amazon →

Best Feminine Washes with Boric Acid (2026): pH-D, Summer's Eve, NutraBlast and Monistat Maintain

Boric acid has moved from the suppository shelf to the wash shelf, and the products are simpler than they sound: external cleansers, wipes and a rinse marketed for odor and freshness. pH-D's foam wash ($8.97) is the pick; Summer's Eve is the drugstore bottle at $4.98; NutraBlast, pH-D's wipes and rinse, and Monistat's Maintain kit round out the field. External use only, never ingested, and nothing here treats anything. Prices verified via the Amazon Creators API on September 5, 2026.

By The Women's Health Desk2026-09-05~10 min read Ranked on verified label facts, never box claimsHow we research

pH-D Feminine Health Boric Acid Foam Wash, Sensitive, 6 Fl OzBest Overall

pH-D Feminine Health Boric Acid Foam Wash, Sensitive, 6 Fl Oz

pH-D Feminine Health · 4.5

$8.97

Summer's Eve Feminine Wash, Ultimate Odor Protection, Boric Acid, 15 Fl OzBest Value

Summer's Eve Feminine Wash, Ultimate Odor Protection, Boric Acid, 15 Fl Oz

Summer's Eve · 4.4

$4.98

NutraBlast So Fresh and Clean Feminine Wash with Boric Acid, 10 Fl OzUpgrade Pick

NutraBlast So Fresh and Clean Feminine Wash with Boric Acid, 10 Fl Oz

NutraBlast · 4.1

$12.99

Warnings first, because this is a boric acid page. The washes, wipes and rinse here are for external use only. Never ingest them; boric acid is poisonous if swallowed. Keep them out of reach of children. Do not use on broken or irritated skin, and stop if you feel burning. They are cosmetics marketed for odor and freshness, not approved to treat any condition, and they do not treat bacterial vaginosis, yeast infections or anything else. One product on this page, Monistat's Maintain kit, includes boric acid suppositories, and those carry the full suppository warnings: vaginal use only, never by mouth, poisonous if swallowed, keep from children, do not use if pregnant or nursing, not on broken skin, see a clinician for diagnosis and if symptoms persist.

With that said: buy pH-D Feminine Health Boric Acid Foam Wash, Sensitive, 6 fl oz, at $8.97 (verified via the Amazon Creators API on September 5, 2026). It is the external wash from the brand that defined the boric acid shelf, formulated for sensitive skin, a foam that owners describe as gentle and unscented, and the label keeps to freshness and odor. If you want the drugstore bottle at the lowest price, Summer's Eve Feminine Wash, Ultimate Odor Protection, Boric Acid, 15 fl oz, is $4.98 for more than twice the volume.

A plain word on what these products are. A feminine wash is an external cleanser for the vulva; it is not for use inside the vagina, which cleans itself, and the labels say so. Adding boric acid to a wash is a formulation choice that lets the brand borrow the boric acid name; it does not make the wash a treatment for anything, and the amount of boric acid is not stated on any listing here. We are a research and verification desk: we read the label, confirm the live listing and price through the Creators API, and weigh consistent owner reports about scent, irritation and value. We do not use these products ourselves and we make no medical claims. Pick slots go to established brands; no brand paid for a placement. If you buy through our links we may earn an Amazon commission at no extra cost to you. Persistent odor is a clinician's question, not a wash's.

The short version

  • External use only, never ingested, keep from children, not on broken skin. The Monistat kit's suppositories carry the full boric acid warnings: vaginal use only, never by mouth, poisonous if swallowed, not in pregnancy or nursing.
  • Our pick is pH-D Boric Acid Foam Wash, Sensitive, 6 fl oz, at $8.97 on September 5, 2026: gentle, unscented per owners, and a label limited to freshness and odor.
  • Budget: Summer's Eve Boric Acid wash, 15 fl oz, $4.98, the drugstore bottle at the lowest price per ounce here.
  • No listing states how much boric acid a wash contains. These are cosmetics for external odor and freshness; none treats any condition.
  • A wash is for the vulva, not the vagina. Persistent odor, discharge or itching is a reason to see a clinician, not to buy a stronger wash.

At a glance

ProductTypeUseSize / countBoric acid amountPrice (9/5/26)Check price
pH-D Boric Acid Foam Wash, SensitiveFoam washExternal only6 fl ozNot published$8.97Check price on Amazon
Summer's Eve Ultimate Odor Protection, Boric AcidLiquid washExternal only15 fl ozNot published$4.98Check price on Amazon
NutraBlast So Fresh & Clean WashLiquid washExternal only10 fl ozNot published$12.99Check price on Amazon
pH-D Boric Acid Feminine Wipes, SensitiveWipesExternal only20Not published$12.86Check price on Amazon
pH-D Instant Odor Rinse with Boric AcidRinseExternal onlyNot publishedNot published$12.97Check price on Amazon
Maintain by Monistat Odor Control KitWipes plus suppositoriesWipes external; suppositories vaginal onlyNot publishedNot published$12.29Check price on Amazon

The boric acid wash, wipe and rinse field. Sizes and counts come from the Amazon listing title; no listing states boric acid concentration. Prices verified via the Creators API on September 5, 2026.

Our PickBest Feminine Wash with Boric Acid Overall
pH-D Feminine Health Boric Acid Foam Wash, Sensitive, 6 Fl Oz

pH-D Feminine Health Boric Acid Foam Wash, Sensitive, 6 Fl Oz

pH-D Feminine Health

The boric acid brand's sensitive-skin foam, gentle and unscented per owners, 6 fl oz for $8.97.

4.5

Our verdict: pH-D's foam wash is the external product from the brand most people associate with boric acid, and its label does the category right: external use only, for freshness and odor, formulated for sensitive skin. Owners describe a light, unscented foam that rinses clean without stinging. At $8.97 for 6 fl oz it is about $1.50 per ounce, more than Summer's Eve; the formulation and the brand are what you pay for.

Verified: Boric acid foam wash for sensitive skin, 6 fl oz, external use only, from pH-D Feminine Health; boric acid amount not published in the listing title. Live at $8.97 on Amazon, verified via the Creators API on September 5, 2026.

External, and the label says so. pH-D Boric Acid Foam Wash, Sensitive is a cleanser for the vulva, not for use inside the vagina. Never ingest it; boric acid is poisonous if swallowed. Keep it from children. Do not use on broken skin. It is a cosmetic for freshness and odor and it treats nothing. The listing does not state how much boric acid it contains.

What owners consistently report: a foam that feels lighter than a liquid wash, no fragrance, no stinging on sensitive skin, and a pump that lasts weeks. The most common complaint is the small bottle relative to the price, which is fair: $8.97 divided by 6 is about $1.50 per fl oz (verified September 5, 2026).

pH-D sells the wash beside its wipes and odor rinse, both below, and its boric acid suppositories, which are a different product with the full suppository warnings (vaginal use only, never by mouth, not in pregnancy or nursing) and are ranked in the best boric acid suppositories. The brand write-up is the pH-D review.

Who should buy it

Buy pH-D's foam wash if you want an unscented external cleanser for sensitive skin from the brand that owns the boric acid shelf, and price per ounce is secondary.

What we don't like

About $1.50 per fl oz in a 6 oz bottle, and no stated boric acid amount, which is true of every product on this page.

Active ingredient
Cleanser with boric acid (cosmetic, external use only)
Strength
Boric acid amount not published in the listing title
Count
6 fl oz
Form
Foam wash, pump
Label ages
Adults; external use only; keep out of reach of children
Cost per fl oz
About $1.50 ($8.97 divided by 6)
Packaging
6 fl oz pump bottle

What we like

  • Unscented, gentle on sensitive skin per owners
  • Label limited to freshness and odor, external use only
  • The boric acid brand

Worth noting

  • About $1.50 per fl oz
  • Boric acid amount not stated
Best ValueBest Budget Feminine Wash with Boric Acid
Summer's Eve Feminine Wash, Ultimate Odor Protection, Boric Acid, 15 Fl Oz

Summer's Eve Feminine Wash, Ultimate Odor Protection, Boric Acid, 15 Fl Oz

Summer's Eve

The drugstore bottle with boric acid, 15 fl oz for $4.98, about $0.33 per ounce.

4.4

Our verdict: Summer's Eve is the feminine wash every drugstore stocks, and this is its boric acid version: 15 fl oz for $4.98, about $0.33 per ounce ($4.98 divided by 15), less than a quarter of pH-D's per-ounce price. External use only, marketed for odor protection, and scented, which is the main reason sensitive-skin owners choose pH-D instead. It treats nothing and the boric acid amount is not stated.

Verified: Feminine wash, Ultimate Odor Protection, with boric acid, 15 fl oz, external use only, Summer's Eve; boric acid amount not published in the listing title. Live at $4.98 on Amazon, verified via the Creators API on September 5, 2026.

The value bottle. Summer's Eve Ultimate Odor Protection with Boric Acid is an external feminine wash. Never ingest it; keep it from children; do not use on broken skin; not for use inside the vagina. It is a cosmetic for odor and freshness and it treats nothing.

The math and the scent: $4.98 divided by 15 is about $0.33 per fl oz (verified September 5, 2026), the best value here by a wide margin. It is fragranced, and fragrance is the most common reason owners with sensitive skin report irritation from any wash; if that is you, pH-D's unscented foam is the safer choice.

Adding boric acid to a mass-market wash is a formulation decision that borrows the ingredient's name. It does not change what a wash is: an external cleanser. Persistent odor is a reason to see a clinician, and the products people reach for next, boric acid suppositories, carry their own warnings, explained in the boric acid suppositories guide.

Who should buy it

Buy Summer's Eve if you want the lowest-priced boric acid feminine wash from a drugstore brand and fragrance does not irritate you.

What we don't like

Fragranced, which some sensitive-skin owners react to, and no stated boric acid amount.

Active ingredient
Cleanser with boric acid (cosmetic, external use only)
Strength
Boric acid amount not published in the listing title
Count
15 fl oz
Form
Liquid wash
Label ages
Adults; external use only; keep out of reach of children
Cost per fl oz
About $0.33 ($4.98 divided by 15)
Packaging
15 fl oz bottle

What we like

  • About $0.33 per fl oz, the best value here
  • Drugstore brand, widely available

Worth noting

  • Fragranced
  • Boric acid amount not stated
Upgrade PickBest Wash From the Value Suppository Brand
NutraBlast So Fresh and Clean Feminine Wash with Boric Acid, 10 Fl Oz

NutraBlast So Fresh and Clean Feminine Wash with Boric Acid, 10 Fl Oz

NutraBlast

NutraBlast's boric acid wash, 10 fl oz for $12.99, about $1.30 per ounce.

4.1

Our verdict: NutraBlast's wash is the external companion to its value suppositories, 10 fl oz for $12.99, about $1.30 per ounce ($12.99 divided by 10). It is priced like pH-D per ounce without the sensitive-skin formulation claim, and owners describe a light scent and a standard liquid wash. External only, freshness only, no stated boric acid amount.

Verified: So Fresh and Clean feminine wash with boric acid, 10 fl oz, external use only, NutraBlast; boric acid amount not published in the listing title. Live at $12.99 on Amazon, verified via the Creators API on September 5, 2026.

The companion bottle. NutraBlast So Fresh and Clean Feminine Wash is an external cleanser with boric acid. Never ingest; keep from children; not on broken skin; not for use inside the vagina. It is a cosmetic for freshness and it treats nothing.

The math: $12.99 divided by 10 is about $1.30 per fl oz (verified September 5, 2026), between Summer's Eve and pH-D. Owners who already buy NutraBlast's Boric Life suppositories (a supplement with the full boric acid warnings) describe adding the wash for brand continuity rather than for any difference in the wash itself.

The brand write-up is the NutraBlast review. For a wash on its own merits at this price, pH-D's sensitive-skin foam is the stronger choice; for value, Summer's Eve.

Who should buy it

Buy NutraBlast's wash if you already use the brand's suppositories and want the matching external cleanser.

What we don't like

Priced near pH-D without the sensitive-skin formulation, lightly scented, and no stated boric acid amount.

Active ingredient
Cleanser with boric acid (cosmetic, external use only)
Strength
Boric acid amount not published in the listing title
Count
10 fl oz
Form
Liquid wash
Label ages
Adults; external use only; keep out of reach of children
Cost per fl oz
About $1.30 ($12.99 divided by 10)
Packaging
10 fl oz bottle

What we like

  • Matches the brand's suppository line
  • 10 fl oz bottle

Worth noting

  • About $1.30 per fl oz without a sensitive-skin claim
  • Lightly scented
Best Boric Acid Wipes
pH-D Feminine Health Boric Acid Feminine Wipes, Sensitive, 20 Count

pH-D Feminine Health Boric Acid Feminine Wipes, Sensitive, 20 Count

pH-D Feminine Health

Twenty sensitive-skin boric acid wipes for $12.86, about $0.64 each, for away-from-home use.

4.3

Our verdict: The wipes are the wash in a purse: twenty sensitive-skin wipes with boric acid for $12.86, about $0.64 each ($12.86 divided by 20). Same external-only use, same freshness claim, and owners describe them as unscented and soft. They are expensive per use compared with a bottle and they are not flushable per owner reports, which are the two honest caveats.

Verified: Boric acid feminine wipes for sensitive skin, 20 count, external use only, pH-D Feminine Health; boric acid amount not published in the listing title. Live at $12.86 on Amazon, verified via the Creators API on September 5, 2026.

Portable freshness. pH-D Boric Acid Feminine Wipes, Sensitive are external-use wipes with boric acid for freshness and odor. Never ingest; keep from children; not on broken skin. They treat nothing. The listing does not state boric acid amount.

The math: $12.86 divided by 20 is about $0.64 per wipe (verified September 5, 2026). Owners describe soft, unscented wipes that suit sensitive skin, and note they should go in the trash, not the toilet.

For daily home use the foam wash is far cheaper per use; the wipes earn their price for travel, the gym and after-work freshness.

Who should buy it

Buy pH-D's wipes if you want a sensitive-skin, unscented boric acid wipe for use away from home and about $0.64 per wipe is acceptable.

What we don't like

About $0.64 per wipe, not flushable per owners, and no stated boric acid amount.

Active ingredient
Wipes with boric acid (cosmetic, external use only)
Strength
Boric acid amount not published in the listing title
Count
20 wipes
Form
Wipes
Label ages
Adults; external use only; keep out of reach of children
Cost per wipe
About $0.64 ($12.86 divided by 20)
Packaging
20 count pack

What we like

  • Unscented, sensitive-skin wipes per owners
  • Portable

Worth noting

  • About $0.64 per wipe
  • Not flushable
Best Boric Acid Rinse
pH-D Feminine Health Instant Odor Rinse with Boric Acid

pH-D Feminine Health Instant Odor Rinse with Boric Acid

pH-D Feminine Health

pH-D's external no-lather rinse for odor, vegan and paraben-free per the listing, $12.97.

4.2

Our verdict: The rinse is pH-D's no-lather format: an external rinse for odor that the listing describes as vegan and paraben-free. At $12.97 with no size in the title, we compute nothing per ounce. Owners use it as a quick external rinse in the shower or between washes. It is external only, treats nothing, and is not a douche; the label and every clinician agree the vagina is not to be rinsed.

Verified: Instant Odor Rinse with boric acid, external use, vegan and paraben-free per the listing title, pH-D Feminine Health; size and boric acid amount not published in the title. Live at $12.97 on Amazon, verified via the Creators API on September 5, 2026.

A rinse, not a douche. pH-D Instant Odor Rinse with Boric Acid is for the external area. It is not for use inside the vagina, which cleans itself and should not be rinsed. Never ingest; keep from children; not on broken skin. It is a cosmetic for odor and it treats nothing; the boric acid amount is not stated.

What owners report: a light, quick-rinsing liquid with no lather that they use in the shower or as a rinse between washes, and a bottle that goes faster than expected. At $12.97 (verified September 5, 2026) without a size in the title, per-ounce math is not possible.

Most people are better served by the foam wash; the rinse is for those who prefer a no-lather product. Odor that persists through any external product is a reason to see a clinician.

Who should buy it

Buy the rinse if you prefer a no-lather external product and already trust the brand.

What we don't like

No size in the title, a bottle owners say empties quickly, and a format that invites misuse as a douche, which it is not.

Active ingredient
Rinse with boric acid (cosmetic, external use only)
Strength
Boric acid amount not published in the listing title
Count
Size not published in the listing title
Form
No-lather rinse
Label ages
Adults; external use only; keep out of reach of children
Cost per fl oz
Not computed (size not published)
Packaging
Not published in the listing title

What we like

  • No-lather external format
  • Vegan and paraben-free per the listing

Worth noting

  • Size not stated
  • Empties quickly per owners
Best Wipes plus Suppositories Kit
Maintain by Monistat Boric Acid Odor Control Kit, Wipes and Suppositories

Maintain by Monistat Boric Acid Odor Control Kit, Wipes and Suppositories

Monistat

Monistat's Maintain kit pairs external wipes with boric acid suppositories, $12.29; full suppository warnings apply.

4.2

Our verdict: The Maintain kit is the only product here that includes something to insert, so the full boric acid suppository warnings apply: vaginal use only, never by mouth, poisonous if swallowed, keep from children, do not use if pregnant or nursing, not on broken skin, not FDA-approved to treat any condition, see a clinician for diagnosis. The wipes are external. The title states neither count, and at $12.29 it is a small starter kit from the Monistat supplement line, not the antifungal.

Verified: Maintain by Monistat boric acid odor control kit with wipes and suppositories; counts and boric acid amounts not published in the listing title. The suppositories are a supplement for vaginal use only, never by mouth. Live at $12.29 on Amazon, verified via the Creators API on September 5, 2026.

Two products, two sets of rules. Maintain by Monistat Boric Acid Odor Control Kit bundles external wipes with boric acid suppositories. The wipes are external use only. The suppositories are a boric acid supplement for vaginal use only, never taken by mouth, poisonous if swallowed, kept from children, not for use in pregnancy or nursing, not for broken skin, and not approved to treat any condition. Neither treats anything; the label describes odor control.

Not the antifungal. Maintain is Monistat's supplement line. It is not Monistat 3-Day miconazole, which is an FDA-approved drug with a Drug Facts panel. The shared brand name is the most common confusion on the whole vaginal shelf, and it is untangled in Monistat vs boric acid.

The title does not state how many wipes or suppositories are included, so we compute nothing per piece. At $12.29 (verified September 5, 2026) it is a way to try both formats from a pharmacy brand. The suppository-only Maintain 30 count is ranked in the best boric acid suppositories, and the line is reviewed in the Monistat Maintain review.

Who should buy it

Buy the Maintain kit if you want external wipes and a few boric acid suppositories from a pharmacy brand in one box, and you have read and accepted every suppository warning.

What we don't like

Neither count is in the title, the brand name invites drug-versus-supplement confusion, and the suppositories carry warnings that a wash page's other products do not.

Active ingredient
Wipes with boric acid (external) plus boric acid suppositories (supplement, vaginal use only)
Strength
Boric acid amounts not published in the listing title
Count
Wipe and suppository counts not published in the title
Form
Wipes plus vaginal suppositories
Label ages
Adults; keep out of reach of children; suppositories not for pregnancy or nursing
Cost per piece
Not computed (counts not published)
Packaging
Kit

What we like

  • Two formats from a pharmacy brand
  • Small starter kit

Worth noting

  • Counts not stated
  • Suppositories carry the full boric acid warnings
  • Brand name invites confusion with the antifungal

What you'll need

The six things that go with a vaginal suppository: applicators, pH strips so you know what you are treating, a probiotic and a vitamin E option, a moisturizer, and a gentle wash. See a clinician for diagnosis. Prices are approximate at time of writing.

More picks worth comparing

Beyond this guide, the highest-rated picks across every category and budget, with a live price check on each.

Fleet Glycerin, Adult 50 ct

Best Overall

Fleet Glycerin, Adult 50 ct

glycerin · 50 ct · ~$4

Check Price
Dulcolax Bisacodyl 10 mg

Best Fast-Acting

Dulcolax Bisacodyl 10 mg

bisacodyl · 4 ct · ~$5

Check Price
Preparation H Suppositories

Best for Hemorrhoids

Preparation H Suppositories

12 ct x 2 · ~$18

Check Price
pH-D Boric Acid 600 mg

Best Boric Acid

pH-D Boric Acid 600 mg

600 mg · 24 ct · ~$27

Check Price
Pedia-Lax Liquid Glycerin, Kids

Best for Kids

Pedia-Lax Liquid Glycerin, Kids

ages 2 to 5 · 6 ct x 3 · ~$21

Check Price
FeverAll Infant 80 mg

Best Fever

FeverAll Infant 80 mg

acetaminophen · 6 ct · ~$13

Check Price

As an Amazon Associate we earn from qualifying purchases, at no cost to you.

Quick shop: every pick

Skip the scroll: the whole lineup, with a live price check on each.

  1. pH-D Feminine Health Boric Acid Foam Wash, Sensitive, 6 Fl OzBest Feminine Wash with Boric Acid OverallpH-D Feminine Health · $8.97Check price on Amazon
  2. Summer's Eve Feminine Wash, Ultimate Odor Protection, Boric Acid, 15 Fl OzBest Budget Feminine Wash with Boric AcidSummer's Eve · $4.98Check price on Amazon
  3. NutraBlast So Fresh and Clean Feminine Wash with Boric Acid, 10 Fl OzBest Wash From the Value Suppository BrandNutraBlast · $12.99Check price on Amazon
  4. pH-D Feminine Health Boric Acid Feminine Wipes, Sensitive, 20 CountBest Boric Acid WipespH-D Feminine Health · $12.86Check price on Amazon
  5. pH-D Feminine Health Instant Odor Rinse with Boric AcidBest Boric Acid RinsepH-D Feminine Health · $12.97Check price on Amazon
  6. Maintain by Monistat Boric Acid Odor Control Kit, Wipes and SuppositoriesBest Wipes plus Suppositories KitMonistat · $12.29Check price on Amazon

How we chose

Each product was checked the same way: live listing and price confirmed through the Amazon Creators API on September 5, 2026; size and count taken from the listing title, with "not published" for boric acid amount on every listing because none states it; the label read for its use statement and warnings; and owner reports weighed for scent, irritation on sensitive skin, foam or liquid texture, and value per ounce. Pick slots go to established brands. We do not use these products ourselves and we claim no clinical outcome.

Compliance for this shelf. Boric acid feminine washes, wipes and rinses are cosmetics for external use, marketed for odor and freshness. They are not approved to treat, cure or prevent bacterial vaginosis, yeast infections or any other condition, and this page uses freshness and odor language only. Never ingest them; boric acid is poisonous if swallowed; keep out of reach of children; do not use on broken skin. The boric acid suppositories in the Monistat Maintain kit are a supplement for vaginal use only, never taken by mouth, kept from children, not for use in pregnancy or nursing, and not FDA-approved to treat any condition. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. See a clinician for diagnosis, and if symptoms persist.

Questions, answered

What is the best feminine wash with boric acid?

Our pick is pH-D Feminine Health Boric Acid Foam Wash, Sensitive, 6 fl oz, at $8.97 on September 5, 2026, for its unscented, sensitive-skin formulation and a label limited to freshness and odor. Summer's Eve Ultimate Odor Protection with Boric Acid, 15 fl oz, at $4.98 is the budget bottle at about $0.33 per ounce. Every product is an external cosmetic: never ingest, keep from children, not on broken skin, and none treats any condition.

Do boric acid washes treat BV or yeast infections?

No. They are external cosmetics marketed for odor and freshness, not approved to treat, cure or prevent any condition, and none claims to on its box. Persistent odor, discharge or itching is a reason to see a clinician. The only OTC products approved to treat a vaginal yeast infection are miconazole and clotrimazole antifungals.

Can I use a boric acid wash inside the vagina?

No. Feminine washes, wipes and rinses are for external use on the vulva only, and the labels say so. The vagina cleans itself and should not be washed, rinsed or douched. Never ingest a boric acid product; boric acid is poisonous if swallowed.

How much boric acid is in a feminine wash?

No listing on this page states it, so we print not published for every product. The amount does not change what a wash is: an external cleanser marketed for freshness, with no approved claim.

Is a boric acid wash safe for sensitive skin?

pH-D's foam wash and wipes are formulated for sensitive skin and owners describe them as unscented and non-stinging. Fragranced washes such as Summer's Eve draw more irritation reports. With any wash, stop if you feel burning, never use on broken skin, and keep it external.

Is the Monistat Maintain kit the same as Monistat yeast infection treatment?

No. Maintain is Monistat's boric acid supplement line; the kit pairs external wipes with boric acid suppositories that are vaginal use only, never taken by mouth, poisonous if swallowed, kept from children, and not for use in pregnancy or nursing, and that are not approved to treat any condition. Monistat 3-Day and its siblings are FDA-approved miconazole drugs with a Drug Facts panel. Monistat vs boric acid explains the difference.

Can I use a boric acid wash while pregnant?

The washes and wipes are external cosmetics; the labels say to ask a doctor if pregnant, and so do we. The suppositories in the Monistat kit are a firm no in pregnancy or nursing, per every boric acid suppository label.