I masturbate once or twice a day and yesterday I used two types of lotion to masturbate and after this about three hours later I had a burning feeling on the back of my right testicle. Just a few minutes ago I was using the bathroom and looked down and saw that under the head of my penis was red and wrinkled and there was a red line going from where it was wrinkled down to my testicles where it went from a line to a red circle like shape. I'm wondering if it is just a heat burn or just from where I'm masturbating a lot and now I'm getting scared because cancer runs in my family and I'm starting to think it's a type of cancer and will the red and wrinkled part go away.
It sounds like this may have been a reaction to one of the lotions you used. The penis skin is very sensitive, and there are some ingredients (such as alcohol) that can easily cause a stinging and burning sensation in the region. Try using a reputable penis health cream (health professionals recommend Man1 Man Oil). One with shea butter, a high end emollient, and vitamin E, an excellent hydrator, can be very beneficial. Good luck!