A Friend Of Mine Has Been Taking Cephalexin From A

A friend of mine has been taking Cephalexin from a rash he has. The rash has gone away form his body but now he has a total of 9 big lumps/bumps on his legs that are causing him pain when he walks or lies down or touched at all. He tried popping it before I came to visit him and he said he hurt real bad and didn't help. I'm worried because I have seen nothing like it. The doctors here told him they couldn't help when it came to the rash so he went hometo see his doctor there but he live pretty far from school so he said he can't just drive up there. I'm worried about him. I wish I had a picture of it but I don't. Maybe I can ask him to take one after work.