Yes, it hurt, and the 2nd time it came back it seemed to hurt a little less. It felt a bit rubbery too. It was very visible if I raised my arm it really stuck out ): but it was all harmless. Perhaps yours does not hurt because of nerve damage/trauma from surgery. After the 2nd draining I used a heating pad and I also massaged the back of my arm where there was nerve damage and it pretty much fixed everything.