Zhi Bai Di Huang Wan can nourish yin and reduce fire, but phlegm can occur if it is not used in the right way, if the patient has a cold spleen or stomach, or if the patient’s diet is not properly regulated while taking the medicine. 1. The wrong medicine: Zhi Bai Di Huang Wan has the effect of nourishing yin and lowering fire (nourishing the yin essence and lowering the fire), and is suitable for hot flashes (a burst of fever), night sweats (sweating abnormally after going to sleep, and then stopping sweating after waking up), tinnitus and spermatorrhea, and urination (small amount of urine, dark yellow color) and other conditions. Therefore, if it is used without the symptoms of yin deficiency and fire (deficiency of yin and essence in the body, resulting in hyperactive deficiency and fire), or even if there is heavy dampness in the body, it may help dampness to produce phlegm and phlegm may occur. 2. The patient’s own spleen and stomach is cold (spleen and stomach is weak and cold): Zhi Bai Di Huang Wan pregnant women should not be used, as well as cold patients and other does not apply, the spleen and stomach is cold people themselves the role of transporting and transforming water and dampness dereliction of duty, at this time, if you are taking Zhi Bai Di Huang Wan this kind of nourishing and greasy medicines, there may be a phlegm situation. 3. Dietary disorders during the medication: Zhi Bai Di Huang Wan is avoiding indigestible food during the period of taking the medication, so if you over-eat greasy, sweet and other indigestible food during the period of taking the medication, it will generate phlegm and dampness, and then phlegm will appear. Zhi Bai Di Huang Wan should be taken under the guidance of a doctor. If there is any obvious discomfort after taking the medicine, it is recommended to consult a doctor.