Hello, Please do not worry. Biting your tongue or lip is always a risk until the anesthesia wears off. Don t eat or have any extreme temperature liquids until you have a normal sensation and control. Take some antiinflammitory medication and rinse with warm salt water. Call your dentist and make the office aware of your amount of discomfort. Have your dentist take a look if anything worsens or you do not feel better with the antiinflammitory medication such as Tylenol or Motrin. Just make sure that you do not think there is any allergic reaction that may be occurring. Benedryl is recommended and immediate attention required if you have difficulty breathing. There is an injection that can reverse the local anesthesia affects. Ask if your dental office offers this in the future. I hope you will feel better quickly. Thank you for your inquiry.