Silver sulfadiazine
"I was out in the sun WAY too long and now have a 2nd degree burn from it.  I went to my Doctor and she prescribed this cream for me. While at the Doctors, they went ahead and coated me in the cream and put some gauze on it so I could get home without being too messy.  It's a GREAT cream and has made the heat and pain decrease massively.  This would be great to have over the counter, as I had tried everything out there with no luck."