When Maria Delgado noticed a dark streak under her big toenail, she assumed it was from dropping her gym bag on her foot. Six months later, that seemingly innocent mark led to a diagnosis that saved ...
Dear Doctor K: I hurt my toe and now the nail has turned black. What can I do? Dear Reader: Ouch - I've been there. A couple of years ago I was outdoors and turned around to walk in the opposite ...
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