spearmint tea and apple cider vinegar. you can of course google these both but a quick summary is that spearmint tea mimics the effects of spironolactone...google how much you should drink, i've forgotten. and ACV is a great topical/great for a bath soak. it MUST be heavily diluted.. think like 1-2 cups of it in a bath. It's anti-microbial, helps with inflammation, and discoloration. you can also use it on a cotton swap, etc to soak the area. (again...dilute it).

if you're a woman, birth control is free (usually)... some are also approved to specifically treat acne. check out Nurx and K Health.

changes in your diet. keep the inflammation in your body low... so take vitamins, stay away from too much sugar, get plenty of fiber, exercise, etc.

hibiclens (there are cheaper versions of this, and some in bar soap form.. .Dial soap, for example) is also a good one. shower your HS areas LAST in the bath.. you don't want your shampoo/whatever else sitting on the area.

i would also sort this sub by /top and /month, etc... check out the other posts.