Reminds me of something I saw on Ripley's Believe It Or Not a few years back. This old woman in some backwater village somewhere does this, but in a more ...helpful manner.
For example, say a worker gets a splinter in his eye, this woman would clean her mouth by brushing with toothpaste and rinsing, then she'd use her tongue and lick around the guy's eyeball, and was able to remove from it any foreign objects.
...Hey wait a moment-what-are-you-doing-wait-wait-I said wait!!You better stop messing around this instant! What are you going to do if your eye gets infected?GyaaaaaaaaaaaaReady- SetOkay, okay. Now hold still.I'll go at the count of three.ZUN*thump**thump*Uwahhhh wait please wait!B...But-I get it already so calm down, I'll leave it to you, Hakurei!Let me see it.Well, y'know...in the first place, we're both girls.Ouch!A speck of dust went into my eye...Is it serious?This is definitely serious.MAXIMUM CUNNILINGUSOkay.I'll pluck out your eyeball and eat it, Kirisameee!Never mind that, just hold still.Isn't that bad? In more ways than one?No... I was just going to lick it.What now.Reimu, sorry to bother you, but can you get some water from somewher...