There are raw dihuang and cooked dihuang, the former can clear heat, produce fluids and cool blood, the latter tonifying blood and nourishing yin, benefiting the essence to fill the marrow, etc., generally used in medicine and decocted with water, but also congee, stewed chicken to eat.
1. Raw Dihuang is cold in nature, sweet and bitter in taste, belonging to the heart, liver and kidney meridians, with the effect of clearing heat and cooling the blood, generating fluids and stopping bleeding, and is mainly used in treating heat diseases that injure the yin, irritating and thirsting of the tongue with reddish-red color, constipation due to injury of fluids, heat entering the camping blood (the degree of invasion of heat into the human body is deep, and the symptoms are more serious), warm diseases with spotting, vomiting and epistaxis, yin deficiency and fever, bone steam and laborious fever, and thirst and internal heat (internal fever accompanied by symptoms of overeating, excessive drinking, excessive urination and other symptoms), and so on.
2. Radix Rehmanniae Praeparata is sweet in taste, slightly warm in nature, and belongs to the liver and kidney meridians, with the function of tonifying blood and nourishing yin, benefiting essence and filling in marrow. It can be used to treat blood deficiency, headache and palpitations (rapid heartbeat, often accompanied by panic), menstrual disorders and menstrual closure.
It can also be used to treat deficiency of yin in the liver and kidneys (deficiency of yin in the liver and kidneys) resulting in lumbar and knee soreness (a feeling of soreness and weakness in the lumbar and knee areas), dizziness, blurred vision, tinnitus, deafness, and tidal fever (a burst of heat that feels as if the heat is penetrating from inside the bone to the outside).
However, it should be avoided by people with stagnant qi and phlegm, bloating and pain in the epigastrium (abdomen), and loose stools (scanty and unformed feces).
Dihuang is usually used as medicine, decocted with water, but can also be made into medicinal meals, it is recommended that patients consult a doctor or pharmacist first when making medicinal meals.
It is recommended that patients go to regular hospitals for timely treatment of physical discomfort and follow the doctor’s instructions for evidence-based treatment.