There's nothing like the sweet relief of peeling off a sweat-soaked sports bra after a long outdoor workout. But those little red and white bumps that crop up along your bra line? Not so much. If the bumps are white or colorless and don't hurt, they're probably blocked sweat glands, says David J. Leffell, M.D., a professor of dermatology at the Yale School of Medicine and author of Total Skin: The Definitive Guide to Whole Skin Care for Life. Try airing out the area as much as possible, and alternate between racerback and tank styles to avoid irritating the same area of skin. If the bumps are red and tender, they're likely pimples; apply an OTC acne treatment with salicylic acid or benzoyl peroxide to dry them out, he says.
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