It is difficult to generalize what the effect of drinking yellow essence after a month, its therapeutic effect is related to the patient’s condition, personal constitution, such as the use of the right medication, the disease will usually improve. Huang Jing is a kind of Chinese medicine. It is sweet, flat in nature and belongs to the spleen, lung and kidney meridians. It has the effect of nourishing yin and moisturizing the lung, nourishing the kidney and filling up the essence, etc. It is mainly used for treating yin deficiency and laborious cough, lung dryness and cough, little food and dry mouth; kidney deficiency and soreness of waist and knees, impotence and spermatorrhea, premature whitening of beard and hair, and wind, mange, ringworm and other illnesses. The adverse effects of Huang Jing are not clear. Cold and diarrhea, phlegm-dampness, plumpness and stagnation of Qi are prohibited. If there are symptoms of discomfort, the need for medication, need to be used under the guidance of a doctor to identify the evidence, not blindly use their own medication, so as not to cause adverse consequences.