The herbs that have the efficacy of relaxing tendons and activating collaterals (stretching the tendons and bones, dredging the meridians) and relieving pain include chicken blood vine and safflower, etc. Chicken blood vine has the efficacy of invigorating blood, tonifying blood, regulating menstruation and relieving pain (regulating menstruation and relieving pain during menstruation), and relaxing tendons and activating collaterals (stretching the tendons and bones, dredging the meridians), while safflower has the efficacy of invigorating blood and promoting menstruation, eliminating blood stasis and relieving pain (eliminating stagnant blood to relieve pain). 1. Chicken Blood Vine: clinically, it is mainly used for irregular menstruation, dysmenorrhea, menstrual closure, rheumatism and paralysis, numbness and paralysis, blood deficiency and atrophy. Take medication should pay attention to, Yin deficiency and hyperthermia should be used with caution. 2. Saffron: clinically, it is mainly used for menstrual dysmenorrhea, dysmenorrhea, dysmenorrhea, dysmenorrhea (women can not discharge the evil discharge after childbirth), mass in the abdomen, lumps (lumps), paralysis of the chest (chest tightness and pain), heart pain, stagnation of abdominal pain, thoracic and hypochondriacal (chest and ribs) stabbing pain, bruises, injuries, sores and pain. Caution should be taken when taking the medicine, and pregnant women should not use it. There are many other medicines with related effects, such as the use of a Chinese medicine practitioner under the guidance of standardized treatment, so as to avoid delays in the condition. Pregnant women should be cautious.