My friend burned his hand with boiling water! it swelled up right away like a bubble! since they were up in the summit, they couldnt get help soon. He applied lots of toothepaste! and it worked. so just in case youre up in the mountains and you burn your hand..and theres no meds, use toothpaste! it prevents the swelling from getting worse. Why it wors..i odnt know! but it surely does!