Too much sun exposur: Too much sun exposure. Wear a hat, proper clothing, appropriate sunscreen -- or stay indoors.
Answered 4/1/2013
5.2k views
Get seen: A host of uncommon diseases can do this, from some of the porphyrias to xeroderma pigmentosum. You'd do well to make a visit to a dermatologist.
Answered 2/24/2016
5.2k views
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