No way to know.: Without direct visual examination, along with a microscopic scraping and perhaps a culture, there is no way to tell what is going on. Your friend will need to see his doctor or a dermatologist.
Answered 9/9/2013
4.9k views
Pretty much...: ...Anything, from crab lice, to hypersensitivity to saliva, to herpes, to underwear being too tight. Might be worth checking with a doctor if it's severe.
Answered 10/11/2013
4.9k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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