Does massage help "wake up" muscles or nerves after chin implant and cervicoplasty?

The problems you are experiencing are not uncommon after chin augmentation. Within the next month I believe they should subside. Sometimes gradually massaging the area can help soften the nerves and muscles. This is good to try if your doctor approves.Hope this helps!Dr. Ali Sajjadian

Unfortunately, there is little that you can do to spend up the muscle and nerve recovery.  This will improve with time.

If possible a quick check in with your surgeon can be helpful to catch things early. Massaging the nerves and muscles won't necessarily speed things up. The nerves were stretched in putting in the implant. They should return within several weeks. I would just have your surgeon check the implant and make sure it didn't slide out of place. 

Patience and gentle stretching of the mouth (lips) are the two approaches that will work. You can not wake up the nerves or muscles by massage. Time is what will eventually solve these issues. While four weeks can certainly seem like an eternity when it is on your face, the reality is that this is a process that will not come to full resolution for up to three months after surgery.