Asthma is a lung disease that causes your airways to tighten, making breathing difficult. Asthma has no known remedy. Even if you have asthma and appear to be in good health, asthma flares (when symptoms worsen) can occur at any time.
Asthma is a lung disease that causes your airways to tighten, making breathing difficult. Asthma has no known remedy. Even if you have asthma and appear to be in good health, asthma flares (when symptoms worsen) can occur at any time.









