under-breast rash

Women rarely talk about one delicate problem that many of them experience. It is especially common at this time of year because of warm, humid weather. These conditions favor the growth of fungus under the breasts that leads to under-breast rash.

Drug companies may be unaware of the problem. As far as we can tell, there are no FDA-approved products specifically designed to ease the redness, itching and discomfort these infections create. As a result, women have come up with their own approaches for treating this problem.

What Do Women Do for Under-Breast Rash?

We have heard from hundreds of readers about their ingenious remedies for under-breast rash. Here are just a few examples.

Athlete’s foot medicine:

“I had a fungus rash under my breasts. There was some Tinactin antifungal cream for athlete’s foot in my bathroom cabinet. I used it twice a day and in about a week the rash was gone.”

Diaper rash medicine:

“Under my breasts I get a very painful ‘rashy type redness’ that has a bad odor. It even seeps liquid sometimes from the rash. My solution, not ‘cure’, is to wash, pat dry and then apply Zincofax (for diaper rashes). Within ten minutes all the stinging and burning is gone and in a few hours everything has dried up and the skin is back to normal for the time being.”

Zincofax is zinc oxide, which has been used for decades to protect skin from moisture and irritation.

Vaginal cream:

“Do you think vaginal cream will work as well? I’ve been having this rash for close to a year now.”

Many women do use Vagisil or similar products for yeast infections to treat their under-breast rash.

One reader offered her solution, Monistat Chafing Relief Powder Gel:

“I have had this issue (under-breast rash) my entire life. Like my mother and grandmother, I started using cornstarch or baby powder. That worked, but it has to be applied twice a day or more often depending on how badly you sweat. Getting powder everywhere at work was embarrassing. When I started driving a big truck, trying to apply the powder became even trickier.

“Zinc oxide protected the skin, but it felt gross. I can’t remember how I was introduced to it, but I started using Monistat Chafing Relief Powder Gel. It is primarily dimethicone. This product goes on like a gel, but feels like a silky powder. It doesn’t dry, but gives just the right amount of slippage.

“I use Monistat yeast infection cream first for the required number of days to heal any yeast infection. Then Monistat Chafing Relief Gel protects the skin from moisture and friction.

“I apply it in the morning and it will actually last all day. It is a little on the expensive side, but it reduced the number of boils caused by hair follicles, sweat, heat and friction that powder usually didn’t prevent.

“I have been using this product for years and I tell my doctors about it every chance I get. They are often surprised at how healthy my skin is under my breasts, under my stomach and in my groin.

“Other products that contain dimethicone don’t feel the same. The closest alternative I have found so far is Lanacane Anti-Chafing Gel, but it isn’t as silky as Monistat. It changed my life.”

What Other Remedies Can Ease Under-Breast Rash?

Other remedies that have been shared include coconut oil, old-fashioned amber Listerine, milk of magnesia, Vicks VapoRub, Zeasorb powder and apple cider vinegar. Many women also suggest using a cotton handkerchief or absorbent pads under the bra to keep the area dry. You can read even more about such remedies here.

Ultimately, trial and error will yield the best approach for any individual woman. If you have a favorite remedy for managing under-breast rash, please tell us about it in the comments below.

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  1. Patti
    New York

    I had no idea this was a common issue. I had used Benadryl gel and or the spray. It works well.

  2. Susan
    Cornwall, Pei Canada

    I have had Psoriasis for years, especially scalp and bra area ,plus abdomen, cocxys area. However the most of pain and itching comes from the area under and behind my bra. While I was in the Hospital, the nurses discovered my areas of discomfort and with much discussion with a doctor they found a scalp lotion, a salve and they gave me a material to keep under my abdomen and breast and it really worked.

    It has silver oxide in the material and that aids in healing. I advise talking to your doctor about this material- it comes in a long container which looks like parchment or tinfoil. I wish all who suffer from this awful disease some relief and a caring team to help you.

  3. Susan
    Thousand Oaks, CA

    I have never had an under breast fungal rash, but did have a skin rash on chest and back when I came back from a Caribbean cruise. Doctor said to apply fungal cream if it bothered me. It did not burn or itch. I am not a fan of pharmaceutical products since I am under the care of a homeopathic physician. The rash took a very long time to go away without prescription medication. Since then, I occasionally will have isolated lesions, one or two at a time. I read the many benefits of coconut oil for skin problems and thought it was worth a try. Sure enough, coconut oil applied twice a day, took the fungal lesions away in a week. This has been successful twice now.

  4. Melissa
    East Texas

    Texas gal here! My mother (67) has sworn by her stick deodorant for as long as I can remember, and it works for her! I tend to prefer sports bras or at home, no bra at all, but that is just not a good plan overall in the Texas summer heat! So while I don’t use deodorant under the breasts as she does (she’s a standard bra girl, occasionally a sports bra, for mowing or something), if either one of us still develop the dreaded rash (we’re both larger breasted women, by the way), to cornstarch we go! Argo brand is what she and I both use. Nothing fancy, nothing especially organic about it, just pure unadulterated corn starch. If mine gets to the point where I can’t even sleep due to the pain, I get up, take a 2nd shower in warm but NOT hot water, dry completely, and pay *special* attention to drying the under-breast area. No blow dryer, that usually is just a bit too much for me to handle at that stage. Then I take a “pinch” of cornstarch, lean over the sink and kinda half-toss, half-rub it on the area.

    I am currently awaiting the delivery of a rather large makeup brush (for face powder, not blush) from Amazon, and will try that rather than my clumsy short-fingered “toss and floof” method. The brush I selected can be washed easily with soap and water, so I’m also going to make sure I verify that as well.

    If it’s in any way suspected to be a yeast infection, I’ll temporarily apply the cornstarch until I can get in with my primary care doctor for a prescription cream. I’ve been lucky so far, though, and have not needed that. But me and Argo, we go way back and I still swear by it! I am curious about the Phillips MoM though as a deodorant/antiperspirant, for other reasons, so I am checking into that option myself!

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