The efficacy of Vinegar Yanhuosuo is to activate blood, promote qi and relieve pain. Due to the effect of activating blood, it is necessary to use with caution for pregnant women. Vinegar Yanhuosuo is pungent, bitter and warm, belonging to the liver meridian, spleen meridian, in the clinic can be used for the chest, two ribs, stomach, epigastric pain, but also used for menstrual cramps, because of its function of activating the blood, it can be used for the treatment of amenorrhea, can also be used for the epigastric pain that occurs in the post-partum stagnation. Vinegar Yanhuosuo can be used for bruises, fractures and tendon injuries caused by trauma, limb swelling and pain, due to its good pain relieving effect, can also be used for some lumbar and leg pain. Vinegar Yanhuosuo due to its blood circulation and qi power is relatively strong, so bleeding tendency or pregnant women should not be taken, in the use of this herb must first consult a traditional Chinese medicine practitioner or Chinese pharmacist before use, to prevent unnecessary harm to the body.