Phellodendron Bark, Bitter Ginseng, and Ground Elm boiled in water can be taken together, but it is not suitable for everyone to take, it is recommended to consult a doctor before use. Phellodendron Bark has the effect of clearing heat and drying dampness (removing heat and drying dampness), diarrhea and detoxification (removing fire and poison from the body), and removing bone vapor. It is used for treating damp-heat leucorrhoea, heat drenching (burning and stinging pain when urinating, accompanied by frequent urination and urgency, and discomfort of pulling in the abdomen), astringent pain, damp-heat diarrhea (diarrhea caused by feeling damp-heat evil), night sweating (abnormal sweating after going to sleep, and stopping of sweating after waking up), etc. It is also used in treating coldness of the spleen and stomach. Huangbai is contraindicated for those with deficiency of spleen and stomach (spleen and stomach are weak and cold). Bitter ginseng, with the effects of clearing heat and drying dampness, killing worms and diuretic. It is used for treating damp-heat diarrhea and dysentery, blood in stool, jaundice, damp-heat leucorrhea, swollen and itchy nether regions, eczema and wet sores, itchy skin, scabies, and damp-heat dysuria (unruly urination). It is contraindicated for people with cold spleen and stomach, and should not be used with quinoa. Diyu, with the effect of cooling blood to stop bleeding (make blood cool and moist, prevent bleeding), detoxification and astringent sores. It is used for treating hemorrhagic fever, hemorrhoidal blood, leakage (excessive menstrual flow or dripping), scalded by water and fire, eczema, sores, carbuncles and sores. Caution should be exercised in cases of blood in stool, dysentery, leakage and bleeding with stasis. Huangbai, bitter ginseng, ground elm boiled water to drink if there is any discomfort recommended to stop using it in time, and promptly seek medical attention.