As far as current research has shown, no clear harm or side effects have been found from taking dry ginger symptomatically. Dried ginger has the effects of warming the middle Jiao and dispersing cold (dispersing cold with medicine that warms the spleen and stomach), returning yang to the veins, warming the lungs and resolving drinks (facilitating the flow of stagnant fluids by warming the lungs), and is recommended to be taken under the guidance of a doctor. Dry ginger is pungent, hot, dry and strong, mainly into the middle Jiao, specializing in dispersing cold. It can be used in all cases of cold in the middle jiao, whether it is a cold solid case of external cold invading from the inside, or a cold deficiency case of deficiency of yang qi, where the cold is generated from the inside. If the treatment of spleen and stomach cold (spleen and stomach weak cold), abdominal pain, vomiting and diarrhea, fear of cold limbs cold (fear of cold, cold limbs), often used with ginseng, licorice. Dried ginger is hot and pungent, enters the heart and kidney meridians, and has the function of returning yang to the veins. It can be used in the case of Yang deficiency of heart and kidney, Yin and cold internalization of death Yang syncope (unconsciousness, accompanied by cold limbs, even to the elbows and above the knees), and the pulse is weak and wanting to be extinguished. Dried ginger is hot and pungent, and enters the lung and spleen meridians. It can warm the lungs to disperse cold drinks, and warm the spleen to move water and eliminate phlegm. It is often used in treating cold drinks in the lungs, coughing and wheezing, cold form (cold body) and cold back, with excessive and scanty phlegm. This medicine is pungent, hot and dry, and is contraindicated in cases of yin deficiency, internal heat and blood heat; pregnant women should be cautious in using this medicine.