Common Symptoms of Asthma Symptoms of asthma include: Wheezing (a whistling sound when exhaling (a common sign of asthma in children) Usually begins suddenly Comes in episodes May be worse at night and interfere with sleep; may worsen in early morning Gets worse with cold air, exercise, and heartburn May go away on its own Is relieved by bronchodilators (drugs that open the airways) Cough with or without sputum (phlegm) production Shortness of breath that gets worse with exercise or activity Intercostal retractions (pulling of the skin between the ribs when breathing) Nasal flaring Chest pain Tightness in the chest Abnormal breathing pattern --breathing out takes more than twice as long as breathing in