How To Get Rid Of Burn Marks On Face?

Hey yesterday i did a blunder...i did veet arm wax on my upper lips as its mentioned on the wax cover its not for face..now my skin is damge and burned... What should i do now? I feel stress on the effected area...its not burning now... Instatnly i applied normal water...then after 18 hours i applied toothpaste to reduce burning...