When is the best time to use Junfeng spectrum health cervical vertebra instrument?

65438+ 0 ~ 2 times a day, 20 minutes at the beginning of treatment, and gradually increased to 30 ~ 45 minutes each time. Seven days is a course of treatment. Generally, it should be used continuously for 3 to 5 courses, and the courses can be uninterrupted. Health care can be 1 time every day, 30 minutes each time; When in use, you can raise your head with the cushion to achieve a comfortable sleeping position.