Ginger is the processed product of dried ginger, and there are some differences in their efficacy and action. 1. Dried ginger: its drug source is the dried rhizome of ginger, with the effect of warming the middle and dispersing the cold (to warm the spleen and stomach to dispel the cold), warming the lungs and transforming the drink (to promote the operation of the stagnant fluid by warming the lungs), and restoring the yang to open the veins, it can be used in the treatment of cold pain in the epigastrium (the stomach and the abdomen feel the pain of cold), vomiting and diarrhea, coughing and coughing of cold drink and cold limbs and weak veins and other diseases. 2. Cannulated ginger: it is made by taking dried ginger according to the method of stir-frying and shelling with sand, which mainly has the efficacy of warming menstruation and stopping bleeding, warming the middle and relieving pain (relieving pain by warming the spleen and stomach), and can be used in the treatment of yang deficiency and loss of blood, epistaxis (spitting up blood, nosebleed), leakage of menstruation (menstruation with excessive amount or more than one drip), spleen and stomach deficiency and coldness, abdominal pain, vomiting and diarrhea and other symptoms. It should be noted that dry ginger and artillery ginger are pungent, hot and dry products, which should be avoided for people with yin deficiency and internal heat, prohibited for pregnant women, and avoided for people with blood-heat paranoia. The specific use of drugs should also be in the physician under the guidance of the diagnosis of matching, do not recommend blindly use their own Chinese herbs.