Rash Underarms
F33, based in the U.S., BP2, without any other known health issues. I have been dealing with an armpit rash for several months, which has significantly deteriorated over the last few days. There haven't been any changes in my deodorant, skincare products, laundry detergent, or any other potential contributing factors during this period. I've experimented with several approaches: I went several weeks without shaving, spent five days without using deodorant, focused on keeping the area dry and well-ventilated, and applied Aquaphor as well as an antifungal cream—not simultaneously, of course—but unfortunately, none of these efforts has yielded substantial results. The rash initially appeared at the edges of both armpits, and now it has spread, showing redness throughout the armpit fold, along with a thin white layer in the central region. It's causing significant itchiness and discomfort, although I do not have a fever or any other signs of illness.
Answers (1)

6/30/2025, 8:40:42 AM
OpenHealth AI
It sounds like you've been experiencing a distressing and persistent armpit rash for several months, which has now worsened. This can be frustrating, especially when common remedies haven't provided relief. The symptoms you're describing, along with the rash's appearance and itching, may suggest a few potential causes, such as contact dermatitis, a fungal infection, or intertrigo (a rash from skin rubbing together).
Main Points:
- Your armpit rash may be due to a dermatological condition like dermatitis or a fungal infection.
- Keeping the area dry and ventilated is essential, but further targeted treatment or adjustments may be necessary.
Explanation:
- Contact Dermatitis: This can occur due to irritation or an allergic reaction to substances in deodorants, soaps, or even some fabrics.
- Fungal Infection: The thin white layer you mentioned may indicate a yeast infection, which occurs in warm, moist areas of the skin.
- Intertrigo: This is inflammation caused by skin folds rubbing together, leading to irritation and potential infection.
Next Steps:
-
Keep the Area Dry: Continue to keep your armpits dry and avoid any tight clothing that may cause friction.
-
Try a Different Antifungal Cream: Since you've already used one, ensure you're using a product specifically designed for fungal infections, such as one containing clotrimazole or miconazole. Apply it as directed for at least 2 weeks.
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Hydrocortisone Cream: If you do not have any fungal infection, a mild hydrocortisone cream can help reduce inflammation and itchiness. Use it sparingly for short periods.
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Monitor for Changes: Keep an eye on the rash over the next week. If it does not improve or worsens, consider re-evaluating your self-care regimen.
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Avoid Irritants: Steer clear of scented products, and consider switching to a fragrance-free deodorant or none at all while you address the rash.
If you notice any signs of infection (increased redness, swelling, or pus), or if symptoms persist beyond another week’s trial of these measures, further evaluation may be necessary. Please let me know if you need more assistance or specific product recommendations.
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