The dangers of long-term consumption of yellow essence are not yet clear, but it is not recommended to consume yellow essence for a long time. Huang Jing, has the effects of nourishing yin and moisturizing the lungs (nourishing the lungs by replenishing the lung fluid), tonifying the spleen, enriching the qi, and nourishing the kidneys and filling up the essence. It is mainly used for treating yin deficiency and laborious cough, lung dryness and cough, spleen deficiency and fatigue, poor appetite and dry mouth, thirst; kidney deficiency, lumbar and knee soreness and weakness (a feeling of soreness and weakness in the lumbar area and knees), impotence and spermatorrhea, tinnitus and darkness of the eyes, premature whitening of the beard and hair, physical weakness and thinness, and wind, mange and ringworm diseases. It is forbidden to be taken by those with cold and diarrhea, phlegm-dampness plumpness (stomach distension and discomfort) and stagnation of qi. If the patient has any discomfort, please go to the regular medical institutions; if you need to use Huang Jing, must be used under the guidance of a professional doctor.