I only know how it’s used for psoriasis as part of the Goeckerman method [1] but allegedly there’s some general anti-inflammatory effect.

[1] https://pmc.ncbi.nlm.nih.gov/articles/PMC3735239/

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cryzinger 3 hours ago | parent [-]

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.

	▲	gehwartzen an hour ago \| parent [-]
		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