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Family Physician
Family Physician, Doctor (MD)
Category: Health
Satisfied Customers: 12816
Experience:  Emergency Medicine and Family Practice for over 26 years
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After shaving my armpits two weeks ago the entire left armpit

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After shaving my underarms two weeks ago the entire left armpit developed a large round red spot and a small red crescent shape on the other underarm.It doesn't itch or hurt and I feel fine. What could this be? A bacterial infection from the razor? Haven't changed deodorants or shaving cream.

Thank you:

This could be either a bacterial OR a ringworm (a fungal infection).

You can try one of the over-the-counter antifungal medications (Lamisil, Lotrimin Ultra etc) until you can see your physician (since this is a holiday weekend).

If the rash is painful, oozing or rapidly spreading you need to see a physician urgently.
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