In Chinese medicine, there is no such thing as vasodilating herbs, which generally correspond to herbs that can activate blood circulation and remove blood stasis (promoting blood circulation and eliminating blood stasis in the body), such as safflower, angelica, and danshen. Safflower, with the effect of activating blood circulation, removing blood stasis and relieving pain (removing blood stasis to relieve pain). It is used for treating blood stagnation, dysmenorrhea, postpartum abdominal pain with stagnation, obstruction in the abdomen (tangible or intangible lumps in the abdomen with distension and pain), chest paralysis (stuffy pain in the chest), cardiac pain, abdominal pain with stasis of blood and blood, and dystocia (pain in the area of dystocia and ribcage), etc. It is contraindicated in pregnant women and those who have excessive menstruation. Pregnant women and those with excessive menstruation are forbidden to take it. Angelica sinensis is used for treating blood deficiency and atrophy, irregular menstruation, dysmenorrhea, blood deficiency, blood stagnation, blood cold pain, bruises, rheumatism and paralysis, intestinal dryness and constipation, etc. It is contraindicated in patients with heat and bleeding. It is forbidden to be taken by patients suffering from fever and bleeding, and should be taken with caution by people suffering from dampness and fullness in the middle of the body (too much dampness leading to fullness and discomfort in the spleen and stomach) and those suffering from loose stools. Salvia miltiorrhiza is used for treating irregular menstruation, amenorrhea and dysmenorrhea, postpartum abdominal pain with stasis, heart pain with blood stasis, pain in the epigastrium, bruises, rheumatism and paralysis, sores, carbuncles and swollen poisons, irritability and somnolence of fever, palpitation (rapid heartbeat, often accompanied by panic attacks) and insomnia. It is not suitable to be used together with Veratrum. If you need to use the medicine, you should go through the doctor’s diagnosis and follow the doctor’s instructions to standardize the treatment.