I. Can asthma attacks be prevented? Asthma attacks can be prevented. When a child has asthma, the airways are sensitive. In other words, children with asthma have airways that react more easily to certain substances in the environment than people who do not have asthma, and when exposed to these factors, an asthma attack can be triggered. Preventing asthma attacks means staying away from or avoiding asthma triggers (triggers). What are triggers? Triggers are factors that can trigger an asthma attack, including dust mites, pollen, mold, animal fur, tobacco smoke and airborne irritants, respiratory viral infections, cold air or climate change, physical activity, food additives, and some medications. People with asthma may have one or more triggers, and different patients may have different triggers. III. How to recognize the triggers? When a pediatric asthma attack occurs parents should review with their doctor what triggers caused the attack so that these triggers can be identified and avoided. For example, if a child has a wheezing attack after catching a cold, a respiratory infection may be the trigger, while another child has symptoms in the spring when flowers are blooming or when exposed to plants such as pollen outdoors, pollen may be the trigger. It should be noted that children with asthma often have runny nose, sneezing and coughing before an asthma attack, which should not be mistaken for a cold. A more accurate and objective approach is to check for allergens. Many allergens are triggers for asthma attacks, so if you can check for allergens in asthmatic patients, you can reduce or prevent asthma attacks by avoiding exposure. A common method of allergen screening is the skin prick test, which is simple and painless for children and is particularly suitable for children. There is also a blood test for allergens. The most common allergens are dust mites, pollen and molds. How to avoid dust mites? Dust mites, also known as house dust mites or house dust mites, are usually the main component of house dust. They feed on human skin debris and live in mattresses, plush blankets, carpets, shaggy toys and sofas, and reproduce quickly in dark and humid environments. Avoid methods: keep indoor air fresh and dry; wash bedding and plush blankets with hot water (above 55℃) and dry or sun-dry them weekly; use mattresses and pillows with impermeable covers to stop mites from living in them; remove carpets; don’t give children to play with plush toys. V. How to avoid cockroach allergens? Thoroughly and regularly clean houses with cockroach hosts. Use insecticide; if using spray insecticide, children should not be inside during the spraying process; ventilate the house before children return to it. VI. How to avoid other triggering factors? 1. Try to avoid pediatric respiratory infections. Go to less crowded places, add or remove clothes according to weather changes, strengthen nutrition and exercise to improve physical fitness. 2.Avoid contact with fur-bearing animals and do not keep animals such as dogs and cats at home. 3.Stay away from tobacco smoke; stay away from oil fumes, paints, perfumes and other special smells. 4.Close doors and windows and stay indoors during the peak season when pollen and mold appear. It is beneficial to use air conditioners while ensuring that the inside and outside parts of the air conditioner are clean. 5.Avoid the use of aspirin, beta-blockers and other drugs that trigger asthma attacks. 7. Is my child’s diet restricted when he/she has asthma? Food allergies rarely trigger asthma attacks, mainly in infants and children, so in general do not restrict the diet of children with asthma. Sometimes allergen tests may indicate that a child has a positive reaction to certain food allergens, but because they may have been tolerated over time, they are not necessarily a trigger for an asthma attack. However, if an asthma attack has been triggered by eating a certain food in the past, that food should be avoided as much as possible. Foods that tend to cause allergies are seafood, milk and eggs. Is physical activity limited for children with asthma? Physical activity is a trigger for children with asthma, but it is not necessary to avoid it. Pre-emptive use of inhaled beta 2 agonists before exercise can be effective in preventing attacks, and warming up before exercise can also reduce symptoms. Physical activity outdoors not only provides fresh air, but also strengthens the child’s system, improves the child’s ability to adapt to the environment, and increases the child’s confidence in overcoming the disease. Of course, rest should be taken during acute asthma attacks to promote recovery from the disease.