In pain today and surgery is June 2
I don't know why it would affect your surgery date, unless it is a very severe burn, like causing you to run a fever and stuff.
Please note: I AM NOT A DOCTOR. If you want medical advice, talk to your doctor. Whatever I post, there is probably some surgeon or other health care provider somewhere that disagrees with me. If you want to know what your surgeon thinks, then ask him or her. Check out my blog.