I have a very strong itch on my scrotum/testies area, which started a few days ago. The itch is so strong I can barely sleep, and it comes in waves. It itches, after i scratch it gets worse to the point where it hurts, then it goes away for several hours. I have read articles on this and I don t know what it is, considering STDs are the least likely, I am sexually inactive, and cancer sounds a bit sketchy since I m only in my teens. I now notice that the area is also slightly swollen. Help please.