Dermatology Expert Forum
Under arm and groin rash
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This forum is for questions regarding Dermatology issues, such as: rashes, acne, birthmarks, skin infections, rosacea, and general skin care. All questions will be answered by a medical professional.

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Under arm and groin rash

I noticed on June 1st a bright red painfull rash flared up under my left arm pit.  I was on a trip and 4 days later i saw my nurse practitioner.  she prescribed and hydrocortisone cream.  the rash slowly went away with a light pink color under the skin.  when i stopped using the cream the rash would return.  The the rash started under the right arm and groin. Small slightly painful red bumps.  The doctor called in an oral steroid.  the cream and steroid for 1 week and the rash was going away but not completly.  i continued with the cream and it just kept it at bay, only to return when i stopped treating it.  2 months later in august i went back and saw the nurse practioner again. she prescribed another round of steroids with a new cream. (Triamcinolone Acetonide 0.1%)  Same affect of going away and returning.  i'm on my 2nd trimcinolone cream tube and it won't go away but helps it from flaring up.  She mentioned Candia as the rash. I'm a 45 year old male in good physical condition, but i am concerned.  Can you tell me about possible causes of this type of rash and if i might need an oral medication to clear it up.
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It sounds as though your rash is irritated, not infected.  If this were candida (yeast), the steroid creams would have made the rash much worse, and it wouldn't have gone away, even temporarily.  It's not unusual for people to get forms of eczema under the arms and in the folds of skin.  The cause is usually unknown.  Like many skin conditions, the best you can do is to treat the rash when it comes and stop when it goes.  If the skin is smooth and just pink, the cream can be stopped.  Most of the time, it just stops happening after a while.  So don't worry, but I do suggest you consult a dermatologist for a more definitive diagnosis.

Best.

Dr. Rockoff
2 Comments
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There's something in 90% of deodorants I try that gives me a bright red rash under my arms.

I switched to Tom's of Maine and the rash went away completely and has never come back. Although, it took a couple of years of using "regular" deodorant before any irritation came up. Now, I can lay off "regular" stick for months, use it for one day, and the rash is back but it never comes back when I use all-natural deodorant.
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