The lateral roots, fibrous roots, leaves and flowers of Illicium verum can be used as medicine. Roots can be harvested all year round. After digging, remove the sediment, cut off the lateral roots and fibrous roots and dry them. Pick leaves and flowers in summer and autumn, and dry them for later use or fresh use. Fibrous roots and root bark contain neonicotinoids, phenols, amino acids, resins, glycosides and other components. Sex and taste function: pungent, warm and toxic. It can dispel wind, remove dampness, dissipate blood stasis and relieve pain. Indications: rheumatism, pain in bones and muscles, and traumatic injury. Illicium verum root 0.003-0.006 kg, decocted in water, taken before going to bed, daily 1 dose, used for treating traumatic injury. Peel off 0.006 kg of Dysosma versicolor root, 0.03 kg of Achyranthes bidentata (processed with vinegar) and 0.03 kg of Eucommia ulmoides Oliv. Decoct with water to treat low back pain caused by strain. The lateral root of Illicium verum was soaked in 0.03kg of Chinese liquor 1kg for 7 days, and 0.0 15kg of alcohol was drunk in the morning and evening to treat rheumatoid arthritis. Note: This product is toxic, and should not be taken by pregnant women, children, the elderly and the infirm. The dosage should not exceed 0.006kg each time. If poisoned, radish seed (0. 1kg) can be decocted with water to relieve it. Specific usage requires symptomatic medication, please follow the doctor's advice.