I'm 16. I just had my tonsils out 4 days ago (4/25) and now my throat is turning a pink color, what exactly does this mean..my mom says its healing but I want to be extra sure, and if it does mean it healing how soon will it be before my scabs fall off?

Also is it okay to drink certain kinds of pop? My mom said it was ok to try, so i did and it only tingled a little bit on the back of my throat.