Huangbai is used in the treatment of jaundice (yellow eyes, yellow body, yellow urine), diarrhea, night sweating (abnormal sweating after going to sleep and stopping sweating after waking up), spermatorrhea, and feverish drenching (burning and tingling pain during urination, accompanied by frequent urination and urgency, and discomfort of pulling in the abdomen) caused by dampness-heat. Phellodendron Bark is bitter and cold in nature, and has the effects of clearing heat and drying dampness (removing heat and drying dampness), diarrhea and detoxification (removing fire and toxicity from the body). It should be noted that this product is bitter and cold and injures the stomach, and is contraindicated for those with spleen and stomach deficiency (spleen and stomach weakness and cold), and should be used with caution for those who are allergic to this product and those with allergies. This product may cause gastrointestinal damage such as nausea, vomiting and other adverse reactions. If related symptoms occur, it is necessary to use the drug under the guidance of a doctor, do not blindly use the drug to avoid adverse effects.