I. Posterior semicircular canal restoration method-Parnes method 1, the person takes a sitting position head turned 45 degrees to the affected side. 2.Hold the relative relationship between the head and the body, lie down backward and hang the head at 30 degrees to the horizontal plane, maintain 1-2 minutes. 3.Turn 90 degrees to the opposite side; then keep the relative relationship between head and body unchanged and turn the body 90 degrees to the opposite side (complete the above actions within 3-5 seconds, then maintain 1-2 minutes). Second, horizontal hallux valgus repositioning method – Barbecue method Lie flat on the bed, slowly turn towards one side (360 degrees), and finally return to the flat position. Third, the upper semicircular canal repositioning method lie flat on the bed, the head protrudes from the edge of the bed and drops down as much as possible, then slowly return to the sitting position and lower the head.