I'm getting red sore skin at the top of my legs, where the legs meet the groin area. It hurts quite a bit and makes walking difficult. In a few days, it'll go away and the skin returns to normal, then some weeks later it comes back. I have no idea what's causing this. I've been told by the doctor to put dermovate on it, and it does seem to soothe it a little. Any other suggested treatments?