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What's That Rash?

When cold weather ushers in dry, red, itchy skin, you probably feel like an unlucky contestant on a rash-guessing quiz show: Is it dry skin...or some exotic flesh-eating bacteria you heard about on the news?

Credit: Getty Images

9 of 10

Jock itch

Looks like: Red patches with sharply defined edges that may blister and ooze.
Caused by: That overzealous tinea cruris fungus strikes again.
Feels: Itchy.
Where: In the groin, anus, or the creases of the upper thighs.
Contagious: Yes, you can get it through skin-to-skin contact or contact with unwashed clothing.
Treatment: Keep area clean and dry, wear loose-fitting clothes that won’t irritate the affected area, and apply an over-the-counter antifungal that contains miconazole, clotrimazole, or tolnaftate.
See a doctor if: It lingers for more than two weeks. Your doctor can prescribe stronger medications, including oral antifungals.

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