Who knows this "magical" wild flower?

Liuwei Dihuang Pills carry the eternal memories of students at the University of Traditional Chinese Medicine. Whether it is Fang Ge or the six-flavor medicine, their miraculous kidney-tonifying effects have been infinitely magnified. As far as I remember, young people would get inflamed after taking Liuwei Dihuang Pills. Some patients also said that taking Liuwei Dihuang Pills would make them look energetic. Who knows which one is true?

Of course, there is Rehmannia root in Liuwei Dihuang Pills, but some people may have to think about whether to use raw or cooked Rehmannia root. Whether it is raw rehmannia or cooked rehmannia, they are all the rhizomes of a kind of wild grass, which we collectively call Rehmannia glutinosa. Rehmannia has a very strong regional characteristic, and generally speaking, those produced in Huaiqing Prefecture are better. Huaiqing Prefecture is another confusing geographical concept, so we won’t talk about it today.

We also have Rehmannia glutinosa in our hometown, the wild kind. Since few people knew her and she wasn't a big enough group, no one paid any attention to her and she was left to fend for herself. However, this thing has a very strong vitality. Despite wind, sun, drought or flood, you can still see it.

Rehmannia root is divided into raw Rehmannia root and cooked Rehmannia root. Fresh Rehmannia root is sweet, bitter and cold. Raw Rehmannia root: sweet, cold. Rehmannia root: sweet, slightly warm. Generally speaking, Rehmannia has the effects of nourishing yin and kidney, nourishing blood, and cooling blood.

Fresh Rehmannia has the effects of clearing away heat, promoting body fluid, cooling blood and stopping bleeding. It can be used for heat disease damaging yin, red tongue and thirst, spots and rashes, vomiting blood, epistaxis, and sore throat. Raw Rehmannia root can clear away heat, cool blood, nourish yin and promote the production of body fluids. It is used for fever with red tongue, thirst, internal heat due to yin deficiency, bone steaming and fatigue fever, internal heat and thirst, vomiting blood, epistaxis, and spots and rashes. Rehmannia root can nourish yin and blood, replenish essence and fill marrow. It is used for liver and kidney yin deficiency, soreness of waist and knees, bone steaming and hot flashes, night sweats and spermatorrhea, internal heat and thirst, blood deficiency and sallow complexion, palpitations, irregular menstruation, metrorrhagia, dizziness, tinnitus, and premature graying of hair.

The Rehmannia in Liuwei Dihuang Pills is cooked Rehmannia, the black, blocky stuff. Rehmannia root can nourish yin and tonify the kidney. The only disadvantage is that it is too nourishing and greasy, which can affect gastrointestinal function. Therefore, when using it, you should add Chinese medicine that helps digestion, such as Amomum villosum.