Asthma is a chronic allergic condition that affects the bronchial tubes. When an attack occurs, the muscle tissue of the tubes constricts spasmodically, squeezing the air passages and causing labored breathing and a feeling of suffocation. Implicated as contributing factors to asthmatic conditions are allergies, heredity, and emotional stress. Many of the nutrients listed below have been found to provide remarkable natural relief. Vitamin C, Evening Primrose oil capsules, Vitamin B15, MSM, Vitamin B complex and Ginkgo Biloba.