Prescription and dosage of Chinese herbal medicine for the prevention of influenza A (H1N1) Children and adolescents (for those under 18 years of age) Prescription: 5g of honeysuckle, 10g of dasheen leaf, 5g of patchouli, 3g of raw licorice. Dosage: One dose daily, decocted twice in water and then combined with the liquid, divided into two doses in the morning and evening. Take for 3 days. Preventive formula for adults (for 18 years old and above) Herbs: Perilla frutescens 6g, Thornbush 6g, Patchouli 6g, Wild Chrysanthemum 10g, Kanzhu 10g, Daphyllum 10g. How to use: 1 dose daily, decoct twice in water and then combine the liquid and take twice in the morning and evening for 3 days. Decoction method of Chinese medicine Decoction of Chinese medicine should be made in a casserole or stainless steel pot. Add water to cover the surface of the medicine for 3 cm, soak for 30 minutes and then decoct on high heat, boil for 10 minutes on medium heat and strain out 100-150 ml of the juice. Add water and decoct a second time as before and strain out 100-150 ml of the juice. Mix the juice of the two decoctions and add a small spoon of sugar (except for diabetics) and take it twice a day. Precautions during medication 1. Since most of the detoxification drugs are bitter and cold, for students who have a weak appetite and a cold spleen and stomach, the dosage should not be too much at one time, and a dose can be divided into several times. 2, during the medicine diet should be light, avoid greasy, spicy products and fish, cold drinks and other food. Develop good personal hygiene habits, ensure sufficient sleep, reduce stress, exercise diligently, and ensure adequate nutrition.