I feel really scared, my dentist injected my mouth with a painkilling liquid, it made my lipfeel numb. I couldnt resist being a little silly and biting it. Tge next thing I knew was that 2 hours later, the right of my bottom lip was swollen. I looked up online what went wrong and it said boting a numb lip can cause cancer, traumas etc. I saw on google images what can happen. Its horrible I do not even want to explain what I saw. I have had a swollen lip for 2 days now. I have been applying fresh aloe vera and proteleum jelly for 2 days what shall I do to prevent any truamas? Is there a way? How?