Long-term drinking saffron is not good. Saffron belongs to traditional Chinese medicine, need to treat the symptoms, the disease is cured need to stop immediately, can not be taken for a long time. Because saffron has the effect of activating blood circulation and removing blood stasis (promoting blood circulation and eliminating blood stasis in the body), cooling the blood and promoting menstruation, long-term use may damage the body. 1. Blood stasis evidence: saffron taste sweet and flat, into the liver meridian blood (in the four periods of warm disease Wei Qi Ying blood, belong to the most in-depth stage or position), good work of activating blood circulation and removing blood stasis, through the menstrual cycle to eliminate the symptoms, and the force is strong and effective, so it is commonly used in the clinic for dysmenorrhea due to blood stasis, menstrual closure, menstrual irregularities, post-partum, not clean, lumbar and abdominal pain, abdominal pain in the mass, bruises, swelling and pain, and so on. 2. Warmth and heat, spotting and rash: Saffron enters the liver meridian and blood division, not only activates blood stasis, but also cools the blood and detoxifies the toxin (refers to the treatment of blood-heat and toxin), especially suitable for warmth and heat, spotting and rash. It can be used alone to cool blood and remove toxins, or paired with products that clear heat and remove toxins (removing heat and toxins from the body), such as Da Qing Ye and Ban Lan Gen. 3. Evidence of various kinds of lumps and knots: Saffron enters the heart meridian, activates blood circulation and can disperse depression and open knots and stabilize the heart and mind, which can dispel depression and disperse knots, eliminate lumps and fullness, and tranquilize the mind and spirit in cases of depression and unresolved, knotting up of the chest and tightness of the qi, which may even lead to mental and spiritual unrest, palpitation and trance, or madness, etc. Saffron is also used in the treatment of the heart and lung diseases. Pregnant women should use with caution. It is recommended to use saffron under the guidance of a professional doctor.