Cat people! Cat Acne: Purrrfect solutions?

I adopted a himalayan, and I’ve found that she had many more health needs than my tabby. Just one of those is the matter of her feline acne. It is really gross.

Besides washing her chin, which I do weekly, is there any other kind of maintenance that I can do to prevent this? It really bothers her when I try to clean it out of her fur with a flea comb. She sometimes lets me run the slicker brush down her chin, which cleans it off.

I read that you can swab the chin with alcohol every few days, but this seems… dicey. Will it piss my cat off even more than the flea comb?