So i injected on monday, im only on week 4 so my glutes are still in the getting sore stage. But my right side is different than anything i have ever had it feels like a tight ball almost its poking out BARLEY its a little red. its not glossy, no fever, no pus, a little bit of redness, no dark color, its just real tight, i didnt do anything out of the ordinary that would contribute to a bacterial infection. but then again u never know.