In autumn, the principles of preventing dryness, protecting yin, nourishing yang and moistening lung should be followed. Eat more fresh vegetables and fruits. Vegetables should be Chinese cabbage, spinach, wax gourd, cucumber and tremella. Meat can be eaten from rabbits, ducks and herring. ; Eat more sour food, such as oranges and hawthorn. Drink plenty of water, eat carrots, lotus roots, bananas, pears, honey and other foods that moisten the lungs and promote fluid production, nourish yin and clear dryness; Try to eat less or not to eat hot and dry products such as onions, ginger, garlic, peppers, liquor, and fried and greasy things.