Health topics Allergies Asthma Food safety Health news and features Little sneezes: Allergies in children What is anaphylactic shock? Understanding allergic asthma Dining out with food allergies Watch for asthma symptoms in toddlers More news and features Health tools Nausea quiz Allergies or a cold? How to tell the difference Cold vs. allergy quiz Is long-term allergy treatment right for you? Hay fever quiz