Boric acid suppositories are becoming increasingly popular for addressing vaginal health concerns, and you may have seen them recommended online or on social media platforms like TikTok. So, it’s only natural to wonder about their side effects and whether they’re safe to use. Let’s dive into what boric acid suppositories are, how they work, and their potential side effects.

What are boric acid vaginal suppositories?

Boric acid is a naturally occurring compound derived from boron. In the medical world, it’s been used for decades as an antifungal and antibacterial agent. Boric acid suppositories are capsules inserted into the vagina to help restore balance and relieve symptoms of recurrent bacterial vaginosis (BV) or vaginal yeast infections.

Boric acid suppositories are often recommended for women who experience recurring vaginal infections that don’t respond well to standard treatments. They work by:

These suppositories are considered a supplemental treatment, so they’re not typically a first-line option — but they can be especially useful for women dealing with chronic or frequent infections.

Boric acid suppositories side effects

While boric acid is generally safe when used as directed, like all treatments, they’re not without potential side effects. Some women may experience:

  1. Mild skin irritation: Burning, itching, or redness in the vaginal area can occur, especially if you’re sensitive to boric acid or use it too frequently. It can also cause irritation for a male partner, so you should abstain from having unprotected sexual intercourse while using boric acid suppositories and for a few days after finishing treatment. 
  2. Watery vaginal discharge: Some women notice an increase in vaginal discharge after using suppositories. This is usually harmless and temporary. Consider inserting a boric acid vaginal suppository before going to sleep to minimize leakage, or wear a panty liner during the day.
  3. Allergic reactions: Though rare, some individuals may have an allergic reaction to boric acid, leading to increased discomfort or inflammation. If this happens, discontinue use and consult your doctor.

Not compatible with some birth control: Boric acid may damage condoms and diaphragms, and might make vaginal spermicides less effective. It’s best to abstain from sex while using boric acid suppositories.

Are boric acid suppositories safe? 

Yes, boric acid are generally safe when used correctly. Data shows that only around 10% of people experience side effects from boric acid suppositories.

Boric acid is toxic if ingested orally, so you should keep suppositories out of reach of children and avoid using them orally under any circumstances. For that reason it’s also best to avoid receiving oral sex while using boric acid, and for a few days after finishing the treatment. Call poison control on 1-800-222-1222 if you accidentally ingest a boric acid suppository.  

You shouldn’t use boric acid if you’re pregnant or breastfeeding, as boric acid may be harmful during pregnancy. Additionally, if you have open sores or wounds in the vaginal area, using boric acid may cause vaginal irritation or worsen symptoms. 

Although boric acid suppositories are considered safe when used correctly, it’s always a good idea to consult your doctor before using them.

Evvy’s Pure Boric Acid Suppositories

While many boric acid suppositories are available over the counter (OTC), not all are created equal. OTC boric acid is often sold as homeopathic products, meaning the U.S. Food and Drug Administration (FDA) hasn’t evaluated their safety and effectiveness. That’s why we launched our Pure Boric Acid Suppositories. 

They’re produced in a 503a NABP-accredited pharmacy, guaranteeing prescription-grade quality that you won't find over the counter. They contain an optimal dosage of boric acid and, unlike some over-the-counter products, are free from unnecessary fillers or additives. This formulation is gentle on sensitive skin, maximizing effectiveness while minimizing side effects.

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How to use boric acid safely

If you’re considering boric acid, following your healthcare provider’s instructions or the directions on the product label is essential. Typically, you’ll insert one vaginal suppository at bedtime for several days, depending on the issue being treated. Avoid using boric acid longer than recommended, and if symptoms persist, consult your doctor.

FAQ

What are the negatives of boric acid suppositories?

Boric acid suppositories can be quite helpful for addressing various vaginal concerns, but it's good to be aware of some possible downsides. One of the most common side effects is mild irritation, which might feel like a little burning, itching, or redness in the area. Some women also notice an increase in watery discharge — usually nothing to worry about, but it can be a bit annoying. Boric acid can break down condoms and diaphragms and cause penile irritation, so you should avoid sex while using it. Allergic reactions are rare, but they can happen, causing extra discomfort or inflammation. It's really important to remember that boric acid is toxic if swallowed, so make sure to keep it out of reach of children and avoid any accidental ingestion. Boric acid isn't the right choice for everyone. Pregnant women should steer clear of it since it could harm the developing baby. Also, if you have any open wounds or sores down there, you’ll want to avoid using it, as it can irritate those areas further. Lastly, using boric acid too often or incorrectly can upset the natural balance of your vaginal microbiome, which might make things worse instead of better. If your symptoms don’t improve or seem to get worse, it’s a good idea to stop using it and check in with your healthcare provider. 

Can boric acid suppositories cause bleeding?

Boric acid vaginal suppositories can sometimes cause a little irritation or discomfort, but bleeding isn't a typical side effect. If you have any existing issues like vaginal tears, sores, or infections, using boric acid might make those problems a bit worse and could lead to some bleeding. However, if you notice any significant or ongoing bleeding, it’s a good idea to check in with a healthcare provider, as it might point to an underlying issue like an infection or a reaction to the product. If you experience noticeable bleeding or any concerning symptoms while using boric acid suppositories, it's best to stop using them and reach out to a healthcare professional for advice.

What to expect after inserting boric acid?

After inserting a boric acid vaginal suppository, you might notice some mild, temporary changes, like an increase in vaginal discharge. This discharge is usually watery and clear or maybe slightly white. Some women also feel a bit of mild irritation or a slight burning sensation, especially if the area is already a little sensitive, but this should pass quickly. For the best results, use the suppositories at bedtime. This way, they can work overnight while minimizing any chance of leakage. If you find that irritation continues or your symptoms seem to get worse, it’s always a good plan to stop using them and check in with your healthcare provider.

When should you not use boric acid suppositories?

You should avoid boric acid if you're pregnant or breastfeeding, as it can be harmful to a developing baby. Additionally, steer clear of using them if you have any open wounds or sores in the vaginal area since that might cause irritation or discomfort. If you notice any allergic reactions or feel significant discomfort after using boric acid, please stop using it right away and reach out to a doctor. Remember, boric acid should never be taken by mouth, so it's essential to keep it out of reach of children or anyone who might accidentally swallow it. When in doubt, just check in with your doctor to see if boric acid is right for you.