I used Crest whitening strips the other day for the first time. One of my bottom teeth, right below one of my two front teeth, has a small chip on the top corner from accidentally biting down a fork when I was younger. It hurt somewhat the first day but 2 days later I am experiencing so much pain that it is making me sick to my stomach. Do I need to go to a doctor or just wait until the affect wears off? What can I do to lessen the pain?