My buddy and I have been hitting 6 ml fort dodge/week (3 per glute every 3 days) for about 3 weeks now and now he is telling me about a bumb on his glute that is bothering him. He says that its about the size of a quarter and itches. For about 3 days after the injection there was a softball size black and blue mark around the site. He says it feels like a bug bite and doesnt hurt, but itches and is pretty hard like a bug bite. Is this an absess or did he hit something on the injection like a vein? What should he do?