My SD has had cellulitus 2 times now from spider bites. They didn't look infected like that though. It was always this time of the year cuz she would be playing lacross. She'd get wicked large hot spots on the back of her thigh. Wierd having this conversation right now, cuz last night I killed 3 spiders. The first I've seen in forever. SD comes home from college for stepsisters baby shower this weekend. She will flip out if she even sees a spider. Guess I'd better get some spray.
I agree with the others, if he is shooting herion, it is unlikley that he has only done it once in the last few weeks. my AD is now doing that & she is going down fast, very fast.
Remember, Take care of you.