Do you have an allergy?
One in five people in the UK suffer from hayfever, an allergy to pollen. Others are allergic to dust mites, nuts, strawberries or bee stings. Your body always tries to get rid of anything unfamiliar, whether or not it is harmful. Usually, harmless invaders are simply destroyed by your defender cells. But in some people they trigger an allergic reaction because their immune system is too sensitive.