What is the preparation of dried ginger

Dried ginger is the dried rhizome of Zingiberaceae plant, harvested in winter, remove the fibrous roots and sediment, while fresh, sliced and sun-dried or low-temperature drying made. Dried ginger is pungent in flavor and hot in nature, and goes to the spleen, stomach, kidney, heart and lung meridians. Its effects include warming the middle Jiao and dispersing cold (dispersing cold by warming the spleen and stomach), returning yang to the veins, warming the lungs and resolving fluid (promoting the flow of stagnant fluid by warming the lungs). It can treat cold in the spleen and stomach, cold pain in the epigastrium (cold pain in the stomach and abdomen), vomiting and diarrhea; deficiency of yang in the heart and kidney, yin-cold internal deficiency resulting in death of yang, syncope of the limbs (unconsciousness, accompanied by cold limbs, even up to the elbows and above the knees), weak and desperate pulse; and wheezing and coughing with cold drinks. It is also used to treat coldness in the spleen and stomach (spleen and stomach are weak and cold), cold pain in the epigastrium (stomach and abdomen feel cold and painful), mostly used with ginseng and atractylodes; to treat cold stomach and vomiting, it is often used with gao liang jiang; to treat heat on the top and cold on the bottom (there is heat on the upper part, and there is cold in the lower part), cold and heat refusal, and vomiting when food is ingested, it can be used with scutellariae baicalensis, coptis chinensis, and ginseng; and for treating dead yang symptoms, it is often used with appendiciae chinensis. Dried ginger is contraindicated in cases of yin deficiency, internal heat and blood heat, and the adverse effects are not clear. If you need to take dry ginger, it is recommended to consult a medical professional.