Dermatitis: Well, from your description, ring worm is a possibility. To test your hypothesis, apply an otc antifungal cream such as lotrimin (clotrimazole) 1% to the area twice daily for 4 weeks. If it is not gone, you were wrong! the differential diagnosis at this point would be quite long, but the most likely diagnoses would be psoriasis, contact dermatitis, or eczema. Go see your dermatologist!
Answered 10/1/2013
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Ring Worm: Ringworm is a common fungal skin infection otherwise known as tinea. Ringworm most commonly affects the skin on the body (tinea corporis), the scalp (tinea capitis), the feet (tinea pedis, or athlete's foot), or the groin (tinea cruris, or jock itch). http://www.webmd.com/skin-problems-and-treatments/ss/slideshow-ringworm
Answered 5/27/2017
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