There are many kinds of food for reducing internal heat. Classification, among melons and fruits, watermelon can relieve summer heat, wax gourd can relieve summer heat, wax gourd can relieve cough, cucumber can also clear away heat, detoxify and purge fire, induce diuresis, and bamboo shoots can clear away heat and resolve phlegm. Oranges, grapefruit, oranges and other fruits can clear away heat and reduce fire, some of them also have the function of nourishing yin, and oranges can also clear stomach heat. There are also some foods that can be both food and medicine, such as dandelion, which is the yellow-flowered seedlings and purslane that we often use. They can clear away heat and toxic materials and purge fire, and can be used to make herbal tea or steamed dumplings, steamed buns and so on in summer. Bean food, such as mung beans, can be used to detoxify, and we often use it to cook mung bean soup in summer. There are also some animal foods, such as bullfrogs, snails, donkey meat and so on. There are many kinds of antipyretic drugs, so we should use them well, and some patients with spleen and stomach deficiency and cold should avoid using them.