Ken experienced sudden hearing loss and tinnitus in his left ear, it started 6 months before, but in the past 3 days, it was especially worse, Dr. Rowen finds that Ken has a lot of scars, on his shoulder and his leg and ankle, Ken mentions that he has limited range of motion in his neck due to a car accident years ago, Dr. Su injects Procaine into Ken’s scars, and also, Dr. Su gives Ken a “4-Pass” of Ozone Therapy, the Ken now has greater range of motion in his neck, and his tinnitus has gone down “4 or 5 notches,” and he says he can hear again