Just noticed bump on right side of head above ear painful to touch. ive been on amoxicilin for the last week because i that it thought it was my tooth?

Bump: if a week of amoxicillin hasn't resolved issue needs to be seen about, could just be a tophi, mayh be sebaceous cyst.

Agreed and: besides, bump above ear unlikely related to tooth as anatomically distant from oral cavity

Needs to be seen: Call your PCP for an appointment. It's too far away from your mouth to be related to a tooth, and even if it was related to a tooth, your self medication would not resolve your problem.

See your PCP ASAP: For evaluation and labs to rule out temporal arteritis. Take care.