Hi 8 months before I had a paracetamol injection for viral fever. After the injected area Will pain past 8 months. I consult a general surgeon. He said no swelling or lumps the injected my for my right buttocks. No need to medicine. Sometimes the injection put on veins deeply after sometimes it will cure. But myself the pain was severe. I can walk the pain will increase. What can I do. please help me.