Reducing fire refers to a method of treating excess fire, which is different from deficiency fire and excess fire. Reducing deficiency fire refers to the treatment of sore throat, hemoptysis, facial fire, fatigue, irritability, dizziness, insomnia, red tongue, dry mouth and rapid pulse with drugs that nourish yin and reduce fire. Commonly used drugs such as Radix Scrophulariae, Radix Rehmanniae and Cortex Moutan. Reducing fire refers to the use of drugs to clear fire and reduce fire, in order to treat symptoms such as red eyes, headache, toothache and constipation caused by excessive stomach fire. Commonly used drugs are Gentiana macrophylla, Scutellaria baicalensis Georgi and rhubarb. Foods that reduce fire, such as chrysanthemum, mint, lemon, kale, cabbage, etc., are rich in minerals and have the effects of calming the heart and reducing fire and lowering blood pressure; There are radish, rose, lotus root, hawthorn, betel nut and so on. When the weather is dry in winter, you can also eat food that clears away heat and detoxifies, and improve your physique by adjusting food.