Nope, i put minced garlic on a persistent pimple (crater...) that just wouldn't go away. I left it on all night and the next morning i had a blister. Once all the scarring cleared up, it was fine, but it was nasty lookin for a while!!
I don't know if garlic enema's are recommended, but from the strength of garlic, i'm not sure i'd want it raw on the inside of my intestines!!