1, drink plenty of water and often eat red dates, lotus seed soup, tremella lily porridge, etc. 2, drink less, ban strong tea, coffee, eat less spicy, pepper and so on. 3. Take enough vitamin B\C, such as coarse grains, mushrooms, lean meat, milk, green vegetables and fruits. 4. Eat soy products and honey often (add flavonoids-phytoestrogens).