2. Sit on the ground, straighten your legs, and lean your head on your thigh as much as possible to help pull the ligament. (Press three times a day)
3. Sit on the ground with your legs apart and your head on your thigh. (twice a day, one minute each time)
4. Stretch before going to bed. (Hold for one minute)
If you insist on doing the above points every day, you will get better slowly.