i need help with a problem, or i think it is? i injected last friday with test e 1cc and deca 1 1/2 cc in left glute. (same needle) the past couple days a small rash has formed on the injecting spot and i am breaking out on that butt cheek. there is also a SEVERE muscle "knot" on the injection spot. this was only my second injection. should i be worried? what is this?