1. Patient uses with the doctor direction and relaxes his\her neck muscle during treatment.

2. When abnormal reaction appears during the treatment , patient should discharge air slowly, readjust angle traction strength until abnormal reaction disappears, and then try again.

3. When traction with medium and strong strength, close the highest air chamber so that pressure in the lower chamber rise.

4. Before patient treats with strong strength, it is better to do medium and minor traction strength for 30-60 minutes. Reposition with traction must follow doctor direction.

5. During the pumping air, the ball inhale the air too slowly, to use a wooden toothpick to poke air intake in the bottom of valve can resume pumping air unblocked.

6. Avoid sharp and harden goods touching tractor or over pumping when usage.

7. Avoid infinite pumping when unused.