question: I ve been having headache on the left of my head in the back for about 5 day ,also my shoulder , arm,jaw,front of head. About a hour ago I felt a small lump on that area where my headache has been hurting . I when to the emergency room yesterday , I also for got to tell about two bad teeth I have on that side . EMR doctor think it the teeth, so they gave me an antibiotic to take every 6 hour. Help!