I am allergic to nickel and my stomach always breaks out where my jeans rub. I noticed a week and a half ago it was sore and when i felt there was a lump deep under my skin. I went to see my gp and he said it was an abscess and gave my antibiotics. I have since googled and it says they usually have an head on but this doesn't. It feels like a firm lump deep under my skin and there is no way it is going to come to an head. The antibiotics don't seem to be doing anything and i am worrying it's something else. I always think the worst and don't want to go back to my gp until i have finished my tabs but it drives me insane with the worry.