Report back tomorrow with an update. From my experience, it just gets worse 2-3 days after the pin. Like I said before, I don't get pip, I just get swelling and redness. This past Thursday was pin day for me, just this morning I work up with my bicep swollen and a little red. That's 4 days later and it was my delt that I pinned, funny how my bicep is the part that gets swollen and red. Now if it was at the injection site that's when I would worry about an infection. But since it isn't and now it's going on 6 weeks of this weird post injection whatever you wanna call it, I'm use to it. It is frustrating tho because after 2 days I think I'm fine and then it shows up.