Asthma is a chronic inflammatory disease that mainly affects your lungs. Asthma causes recurring periods of breathlessness, coughing, and wheezing. The coughing often occurs at night or early in the morning. The severity and frequency of symptoms vary from person to person.
According to the Centers for Disease Control and Prevention (CDC), in the US approximately 25.9 million people including almost 7.1 million children have it. it is considered one of the most common serious chronic diseases of childhood.