What's wrong with my mouth?

A couple of days ago I bit my tongue so hard that I can still feel an indentation. Ever since my whole mouth feels like I kept scorching water in my mouth for 10 minutes. My taste buds are red and enlarged and they itch too. On tope of that I think I'm having an allergic reaction to chinese food because my lips and tongue are swollen. Can someone please tell me what's going on and how to treat it? Also I've never had any allergies before this..