Thank you. It doesn't feel like ear pain more like sinus infection but I was not sure that it could be present in the side of the head. It feels just like the pain I have felt on the few occasions I've had sinus pain but that was in the front of my head. If it's possible to get sinus pain well behind the ear - then I think that may be what it is. If so, do I need antibiotics or will it just sort itself out?