Asthma is a chronic disease of the tubes that carry air to the lungs. These passages become narrow and the linings become swollen and inflamed. Children with asthma can have symptoms which are worsened by exposure to dust and dust mites, molds, and animals such as cats and dogs. 

 

Children with Asthma may also be sensitive to colds and other viral infections. When the airways are oversensitive children may experience symptoms such as wheezing, chest tightness, and shortness of breath.