I have had an open sore on the underside of my foreskin for about 3 days. It s been a little painful, but i ve just been coping with it. Today when i went to the bathroom, i noticed a strange yellow stain on the front side of my underwear. It smells bad, and i was wondering what it could be. Recently, i ve been trying to clean it with warm water, and to not touch it. I m 15 years old, and a virgin .