It's mildly anti-fungal as well, which makes it effective in dandruff shampoo since a lot of dandruff is caused by fungal overgrowth, aka seborrheic dermatitis.
Another weird/fun one is using bleach as an anti-inflammatory (topical only, of course...), although these days you can find derivative products that offer the same benefits but are much less harsh.
piss on your feet (not in the sauna)
I take a mild bleach bath sometimes and it’s quite invigorating. Seems to kill off a lot of skin surface bacteria which can sometimes be beneficial (there’s good and bad bacteria on your skin).
Not to be done too often but every once in a while I find it helpful. Not all that different from a strongly chlorinated pool.
Another cool one, especially if you don’t have a sauna, is doing a mustard bath. You will sweat like a stuck pig