I completed a course of 8 sessions for the face and head.
 The best effect was the 1st session, and from then on, I just maintained it consistently. And I don't think you need to do it for the head. If you feel too stressed about asymmetry, I recommend trying it once. Don't stop the course from the beginning, see if it works and pay. I had a severe
 chin (I turn to the left), but the asymmetry of my face has improved a lot. It's cosmetic, but first of all. The cramps and pain in my jaw have improved a lot. And I don't think it's just something you can do at the hospital. It seems to be more effective if you wear braces and exercise your facial muscles at home. If you
 have any questions, you can ask.