I agree with Donna, I'm eating breakfast and the title I see is "Impacted Anal Sac" Too late so I may as well read it.

Fragrance? AS long as you can write that title you might as well be honest. Be glad it's not infected.

Just basic rubber gloves will do. Probably should buy a pair just for cleaning the cat.

He will need to be bathed in the sink.

Is Sherpa overweight? Hind end too hairy to effectively clean the area? The two of you may just need to release the anal sac regularly.

Good luck. And he will feel better.