I have a sore on the side of my testicles that looks like a pimple, but is a little larger. it has a dark red circle in the middle of it, and is very sore when moving around and sitting. i have had this before in the exact same spot, it ruptures and goes away, but then returns again. does anyone know what this could be? I saw a doctor a while ago for the same type of sore, but it was on my thigh and nowhere near my genitals. he gave me antibiotics for it and it helped out, but now i have the same sore on my genitals. do i need to go see the doctor again?