I have switched to ED on my prop shots. The only question that I have is...is it ok to inject into a sore muscle, or is it going to hurt when the shot goes in? I am switching sites...but it is time for my left deltoid and it is still sore from the last shot there. I am sure its ok...but I want to make sure the muscle isnt going to spasm or anything when the shot goes in. I need to do my shot tonight...so quick advice is appreciated. Thanks