Bronchial asthma is the most serious allergic disease, and often fatal. The bronchial tubes are narrowed by spasmodic contractions and they secrete an excess of mucus. Hence breathing becomes difficult. The victim wheezes and coughs and feels as if his chest were caught in a vice. An asthmatic attack may last for minutes, hours, or days. The spasm of the bronchial muscles can usually be relieved by adrenalin. Every effort must be made to identify the offending allergen for long-continued asthma can produce serious changes in the lungs.
Check out the Complete Asthma Guide