Remember those times when you scraped your knee or had an accident with hot water or just had a bad case of dry patches or just about anything and your Grandma/Mother used to say just put this on immediately...

No? Well then you're like me. I've only learned about this when my mom came back from a trip. She bought this despite not knowing what the heck it was for. So I put on my Nancy Drew wig and proceeded to investigate. (via google, I'm the 2.0 version. Gotta keep up with the times!)