I've had this problem since I was a child - before I had any form of sexual encounter - and it has been over a year since I have had sex. The problem is, the tip of my penis gets itchy or starts to burn and recently it has been very bad, to the point of keeping me up at night.

I thought it may be dry skin but I tried some "for dry skin" shampoo and nothing changed. I read up on various things it might be but I don't think it is related to sex at all.

There doesn't seem to very much redness, if any.

What could this be and what could I do to eliminate it?