Asthma is a chronic inflammatory disorder of the airways that can cause recurrent episodes of wheezing, shortness of breath, chest tightness or coughing. As the temperature drops in the fall, the chances of asthma in children increase and parents should be more alert. There are five types of asthma in children, depending on the cause. Once a child is sick, parents can increase their awareness and confidence in overcoming the disease by taking into account the characteristics of the disease. Allergic asthma This is the most common type of asthma, usually after contact with allergens, allergens have two types of inhalation and ingestion species, namely indoor dust mites, animal dander and excrement, cockroaches, fungi, outdoor pollen, fungi, etc.; milk, fish, shrimp, crab, eggs, peanuts, etc.. These allergens cause rapid-onset allergic reactions, leading to acute asthma attacks. Infectious asthma is a common type in children, especially preschoolers, and is often caused by respiratory viral and mycoplasma infections leading to attacks. The infection irritates the airways and makes it easy to develop acute inflammatory swelling of the tube walls, leading to obstruction of the child’s airways. Exercise asthma These children often develop acute bronchospasm after exercise, causing airway narrowing and increased airway resistance, which manifests as an asthma attack or a significant worsening of the original wheezing symptoms. Drug-based asthma Some patients develop asthma symptoms after taking drugs such as aspirin, also known as aspirin asthma. The mechanism of occurrence is that such drugs inhibit an enzyme in the body that increases the substances that cause bronchoconstriction and triggers it; this type is less common in children. Cough variant asthma When a child has repeated coughs for more than a month and antibiotic treatment does not work, parents should take the child to a specialist clinic. The child may have asthma, or cough variant asthma, which is a very common type in children. Asthma can be very harmful, and in addition to the symptoms that we know can have an impact on life, asthma is likely to lead to complications if it is not treated properly, so we hope that patients with symptoms must be treated in a timely manner, and do not delay and miss the best time for treatment.