Hello

I have my foreskin tip gone dry and when i try to get it back it hurts n i tend to get cuts n it burns, n on the tip of the head of penis there seems to b a rash formed with tiny white boils can some one plzz help as wot it is ?, it just happend one day i felt itchy n i stated itching n then the next day the tip forskin went dry with white linnings.