Slightly swollen right tonsil 7-8 days. no fever, white patches, or cold symptoms. painful sore throat days 1-3, now mildly uncomfortable, but worse at night.

See MD.: Sounds like unilateral tonsillitis. See MD. Likely antibiotics. Perhaps referral to ENT doc.

Sounds like tonsilli: your description sound like it is viral. suggest warm salt water gargles, and drink a lot of fluids, and suspect it will resolve in a few days. if it persists, or you develop fever or you do get some white patches on the throat/tonsils, then strep needs to be ruled out. there are also other bacteria that can cause a pharyngitis or tonsillitis.