I have been very care to folllow all instruction concerning needle size, cleanliness, ect.

I did a left pec injection about a week ago and and I have developed a hard lump that is pain full. I have been using a heating pad for several days now and because of all that I have read started to take amoxicillan at 1500 mg per day.

I am not sure what the cause is or what I may have done wrong, I have been researching but would appreciate feed back.

Twostones