1, food should not be too salty, too sweet, too greasy and too irritating. Depending on the individual's allergies. 2. Magnesium and calcium can reduce allergies. You can eat more foods rich in magnesium and calcium such as kelp, sesame, peanuts, walnuts, bean products and green leafy vegetables. 3. Supplement enough high-quality protein to meet the needs of inflammation repair and nutritional supplement, such as eggs, milk, lean meat and fish. Fat-rich foods should not be eaten more. 4. Increase foods containing multivitamins, such as fruits and vegetables. Because vitamin A can enhance the body's disease resistance, vitamins B and C can promote the absorption of lung inflammation. 5, when asthma attacks, sweat more and eat less, so that children lose more water. Therefore, children should drink more water, which is also conducive to diluting sputum and making it easy to discharge sputum. 6. Children can eat more foods such as lily, tremella, citrus, radish, pear, lotus root, honey and kiwi fruit. Parents should understand dietary taboos, prevent and treat children's asthma by adjusting diet, pay attention to children's physical health, and pay attention to adding clothes in cold winter to avoid asthma attacks caused by children's colds.