I have this awful burn on my face.
As I was straightening the hair near my temple, I went too high and clamped my skin at a whopping 400F.
How do I treat such a thing?
Probably go see your doctor. In the meantime, I advocate putting grated raw potato on it (cover it in clingfilm) but i admit that is a bit hippy. Other then that, apply lots and lots of water based moisteriser.