Fever can occur in patients with asthma, but asthma does not cause fever. Asthma is a chronic inflammatory disease of the airways, closely related to allergic factors, with attacks mainly characterized by recurrent chest tightness, wheezing or coughing, and without infection, fever does not occur. Therefore, asthma can cause symptoms of chest tightness, wheezing, difficulty breathing or coughing without causing a fever. Asthma can also be triggered by infections, such as an asthma attack when there is an infection of the respiratory tract, and respiratory infections can cause a fever, so asthma patients can also develop a fever. Therefore, causing a fever and developing a fever are two different concepts. If an asthma patient develops a fever, it means that co-infections are more likely to be considered, and antibiotics need to be added to the treatment.