Saffron belongs to the heart and liver meridians. Saffron is pungent in flavor and warm in nature. It has the effects of promoting blood circulation, clearing menstruation, 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 blood stasis, dystocia (pain in the area of coxa and ribs), bruises, stagnation and swelling pain and stagnation with dark colored rashes. Saffron is not recommended for pregnant women and those with excessive menstruation. Adverse reactions: Improper application of saffron can lead to poisoning, symptoms of poisoning mainly manifested as abdominal discomfort, abdominal pain, diarrhea, or even gastrointestinal bleeding, abdominal cramps and so on. If you need to use the drug, should be used under the guidance of a doctor, do not blindly self-medication.