For seborrheic alopecia you can use cypress, bitter ginseng, lateral cypress leaves and other combinations of decoction water external wash. 1. Phellodendron Bark has the efficacy of clearing heat and drying dampness (removing heat and drying dampness), removing fire and vapor, and detoxifying sores. It is used for damp-heat diarrhea (diarrhea caused by feeling damp-heat evil), jaundice and red urine, itching under the belt, bone vapor and labor heat, sores and swelling, eczema and wet sores, etc. It is bitter cold and hurts the stomach. This product is bitter and cold stomach, spleen and stomach cold (spleen and stomach weakness and cold) people should not use, adverse reactions are not clear, external use in moderation. 2. Bitter ginseng, has the effect of clearing heat and drying dampness, killing worms, diuretic, used for hot diarrhea, blood in stool, jaundice, urinary incontinence, eczema, eczema, itchy skin, scabies, leprosy, external treatment of trichomonas vaginitis. It is contraindicated for those with deficiency and coldness of spleen and stomach (spleen and stomach weak and cold), and should not be used with quinoa. Adverse reactions are not clear, external use in moderation. 3. Siberian leaves, with the effects of cooling blood to stop bleeding (making blood cool and moist, preventing bleeding), resolving phlegm and relieving cough, and regenerating hair, is used in treating vomiting of blood, epistaxis, hemoptysis, haematochezia, bleeding in stools and faeces (excessive menstruation or dripping of more than one drop), coughing with heat in the lungs, hair loss due to heat in the blood, and premature whitening of beard and hair. Contraindications and adverse effects are not known. Before using Chinese medicine, it is necessary to ask the doctor for identification and use under the doctor’s guidance, so as to avoid improper use of medicine and delay of the condition.