by farrin » February 17th, 2014, 7:02 pm
Nair is composed of calcium and sodium hydroxides -- very caustic substances. If you leave it on long enough, you'll burn your skin. It's possible you left it on for longer than recommended, or mixed it more strongly than on the directions, but you now have a chemical burn. It'll hurt, but the odds are it's not terribly dangerous.
Chemical hydroxides normally burn by removing water from organic tissues, so the best thing to do would be to rehydrate the skin. If your skin is broken, however, you may be at risk of infection, so I'd see a doctor and ignore what's below.
If the skin is inflamed and painful, but not broken, I'd suggest taking some anti-inflammatories and/or painkillers and then soak in a tub of warm water (possibly with some added salt, but not too much -- just enough to allow it to penetrate your skin a little more easily). The good news is that if a burn hurts, it's usually superficial -- burns that penetrate deeply cause less pain.
You may also find topical analgesics like rub A-535 useful (but don't overdo it -- check the directions).
But the critical thing is to rehydrate your skin before it peels, cracks, or bleeds.