If there is blood stasis after a hand strain, herbs such as saffron and sumac can be used to invigorate blood circulation and remove blood stasis (promote blood circulation and eliminate blood stasis in the body). 1. Saffron: It has the effect of activating blood circulation and clearing menstruation, dispersing blood stasis and relieving pain. It can be used clinically to treat menstrual closure, dysmenorrhea, dysmenorrhea, dysmenorrhea (women can not get rid of the evil discharge after giving birth), obstruction in the abdomen, lumps (masses), paresthesia in the chest, heartache, stagnation in the abdominal pain, stabbing pains in the chest, injuries of bruises and falls, and pains in the ulcers and sores, and so on. Pregnant women should be used with caution. 2. Sophora: It has the efficacy of subduing swelling and relieving pain (eliminating swelling and pain), invigorating blood circulation and removing blood stasis, and can be used clinically for the treatment of bruises, fractures, stagnation, swelling and pain, menstrual dysmenorrhea, post-partum stasis, chest and abdominal pain, carbuncle and gangrene (a kind of venomous sores, which occur in the surface of the body, the limbs, and the internal organs of the acute suppurative diseases), and other syndromes and diseases. Patients with the above symptoms are difficult to relieve, should seek medical diagnosis to avoid delay in treatment, in addition to the above drugs need to be used under the guidance of traditional Chinese medicine diagnosis.