Originally Posted by
vaya 
I would first go with whatever doctor said. IV users can get abcesses from shooting drugs that can appear that way. However, you didn't say what your son's issues/choice of drug is, so this may be completely irrelevant.
The fact that he doesn't live with you anymore makes me wonder why you would want to drug test him. Is there some kind of other arrangement you have with him, ie helping with his rent or other things that would matter if you drug tested him.
I know how it is to worry about your son when there are signs for concern, but there isn't really much you can do about him. What does he say? Most important is that you don't let it completely preoccupy your thoughts and time , especially if all seems relatively well otherwise.
His doc was perc, snorting of course, he works everyday faithfully and says hes done with them. but since I help with some bills I still randomly do tests. this would be a new choice doctor said it was an abcess he dug at it and made it look worse Could be my crazy brain in over drive. He is spending the rest of week with me cause issue with living arrangments, I need to just talk to him. He said it was a pimple that turned ugly. location is what made me so concerned