I've had a spot on my upper left thigh for more than 2 years now and it still hasn't gone away. I think it started when I took modafinil for a month straight and noticed my upper left thigh was getting itchy so I'd scratch it. I scratched it regularly and even after stopping the modafinil this spot didn't go away. It usually doesn't get itchy by itself but when I'm in the shower and I wash that area it becomes very itchy and I usually scratch it until it gets red. Sometimes it even bleeds a little.
I'm guessing I need to go to a doctor for this, eh?