E cigarettes and Asthma: What Are the Health Impacts? Electronic Cigarettes and Vaping in Allergic and Asthmatic Disease Immunology and Allergy Clinics Everything you need to know about e cigarettes Vox Flavoured e cigarettes can worsen asthma Flavoured e cigarettes can worsen asthma E cigarettes are not a healthier alternative to cigarettes. They contain nicotine and many harmful ingredients that can cause cancer and heart disease. Since these products are relatively new, we don't know all Tobacco Smoke, Vaping, and Asthma AAFA.org