I’ve recently developed a red sore on my butt cheek. It initially looked like a bite. It now has a red inflamed area around it. It has a small scab on the head cause I have scratched it. I don’t have any other sores. I recently went for a sti check which came back all clear. I am obsessed that this might be Herpes! It’s sore today. But probably because I’ve been prodding it. I occasionally get a bit of pain in that butt cheek. I also have psoriasis so I am literally itching all over anyway!