The lump is at your elbow? It hurts to touch it? Probably be a good idea to have that checked by a doctor!
I have a lump on my right arm. It is were the arm bends. I can't pick anything up. I have had this for a week now. It hurts to touch. I can't pick anything up without it falling. I don't know what it is. I never had this happen. What could it be?
You are a heroin addict and have an abcess.