I would go to the doctor myself if I had a place that looked like yours. I got a tick bite from a little tiny tick in tenn a couple of yrs ago and it swelled up and got red and itched like crazy. after more than a week I went to the doctor. he said he didn't think it was lyme disease but gave ma an antibiotic and it cleared right up. it could even be a spider bite from something like a brown recluse.