Well, I would say try cocoa butter for the burn marks. I have done waxing before and always ended up with bumps afterwards. Try not to wear anymake up until it goes away.
I used to wax mymface too, but it got too unbearable, i now use removal cream every 2weeks, it is just as effecive and less painful with no flaws. I have very sensitive skin so have to be careful with what i use... Im from new zealand and i use a product called Nair, i think in the UK etc it is called Veet?