question: Hi I had severe tooth ache Saturday and Sunday, on Monday when to the dentist already with a numb lip. The dentist open the tooth to let the infection out, and because it was still draining she did not close the tooth that day. On Tuesday the tooth was better and she close it with some medicine. Yesterday was a holiday and I felt numbness on my legs too, and my lip is still numb even though the dentist is already treating the tooh, I was at the dentist this morning too ( Thursday ) why is my tooth still numb?