headache

well a couple of weeks ago i had this huge swelling at the back of my left ear. it was hurting me so much and i couldn't even touch or sleep on that side. i went to the doctor but because i was late the hospital got closed. then we went to a pharmacy and told the lady about my problem. she just told me it was nothing to worry about and was just because of the hot weather. anyway it went away after a few days but a small bump remained. like a cyst. but well these days the same side of the head hurts. and it hurts on the head near the ear, well above the ear. well its not regular but it hurts once in a while then disappeaars. and hurts agin :( . im pretty worried about it. can someone tell me what that is. it hurts like a small current shock or something.