Understanding PG Allergy Symptoms The Signs and What To Do Experts have raised concerns about life threatening allergic reactions in teenagers caused by e cigarettes, which are becoming increasingly popular among young people. Reports highlight that children in the UK are being hospitalised each Could you be ALLERGIC to your e cigarette? Vaping 'could cause deadly reactions and chemical asthma' PG Intolerance: Recognising the symptoms and what you can do about it