Got two lighter burns from a stupid friend should I go see a doctor

So I got burned by a friend a a week or 2 ago while we where drinking and they now they look like the image below I have no pain or heat from the areas the had both had scabs on them but one slowly fell of leaving a little at the bottom but the bit that's white scares me a little.

they just don't look great I'm 20 year old guy. Any suggestions?