The man’s weak fire may be due to lung yin deficiency, kidney yin deficiency and other reasons. 1. Lung Yin Deficiency: Lung Yin deficiency will lead to the loss of fluid in the lungs, the patient will have a Yin deficiency and fire (Yin essence loss in the body, the emergence of hyperactive fire), often manifested clinically as a dry cough with no phlegm, afternoon hot flashes (a burst of fever), dry throat and mouth dryness, etc., at this time, you can take the Lily Solid Gold Pills and other Chinese medicines that have the function of clearing the heat of the lungs and nourishing the lungs to carry out the treatment. Note that this product is prohibited for those who are allergic to it. 2. Kidney yin deficiency: Patients with kidney yin deficiency often suffer from deficiency of kidney yin and essence leading to high fire, which is usually manifested as spermatorrhea and premature ejaculation, night sweating (abnormal sweating after going to sleep, but sweating stops after waking up), hot flashes, and lumbar and knee soreness and tenderness (feeling of soreness and weakness in the lumbar area and knee area), etc. The patients can take Chinese medicines with the function of tonifying the kidney yin such as Liufidiyinhuang Pill for the treatment. Note that this product is forbidden to those who are allergic to it and should not be taken by patients with cold and fever. Patients with high deficiency fire need to consult a doctor in time and be treated under the guidance of a professional Chinese medicine practitioner, do not blindly use medication on your own to avoid further development of the condition.