It has worked to speed the healing of cystic acne spots as well as cleared up itchy pink patches of candida (yeast infections) on the skin in our house!
"It" is simply about a tablespoon of olive or avocado oil that has had a pressed garlic clove marinating in it for three days or so. Shelf-stable for many weeks at least, it is very powerful without burning the skin. (Ringworm [a skin fungus] in the family was once cured by taping raw garlic to the spot overnight, but that burned away the fungus AND the skin, eek!, so we know not to use garlic straight these days!) I plan to try this on minor cups and scrapes now that it's warm enough to play outside again.
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“If we are honest, we can still love what we are, we can find all the good there is to find, and we may find ways to enhance that good, and to find a new kind of living world which is appropriate for our time.” ― Christopher Alexander