I've had an Ultherapy procedure done a week ago.licodin injected was to my lower part of face/chin/neck to make it numb in order to preform the procedure. It is now a week since it was done and I feel my lower part of the face is still numb. A.Is this normal? B. Can it be the Licodin, or is it the Ultrasound? C. how long should it last for? D. Is it causing any other damage to my skin? does the fact the the skin feels numb, reduce amount of blood to the place of make any other damage to it?