It can be tmj dislocation. You can consult through this for prescription of medication and dietary instructions and lab investigations to confirm diagnosis and treatment plan.

Hello madam have you been diagnosed by a dentist or a physician with the tmj issue ? Regarding the  right tmj sound. It would be better to visit a dentist or maxillofacial surgeon.

Hello. Since when are you noticing the swelling? Is it painful? Are you having any trouble in opening your mouth? Your concern can be because of several reasons which  can be ascertained after taking proper history and doing thorough clinical examination. It will be best to visit your nearby Oral and Maxillofacial Surgeon for the same.

Hello This is because of 2-3reasons like tmj disorder,may be due to misaligne teeth,may be some infection.for proper evaluation visit clinic