As many as one in three people will develop allergies at some time in their life. This science-based guide explains the symptoms and most effective treatment of common allergies such as hay fever, asthma and eczema. It shows how the immune system can cause allergies, uncovers the role of triggers - from pollen and wheat to latex and some medicines - and reveals the difference between food allergies and intolerance. It looks at why some conditions are linked, and examines the relationship between allergies and genetics. Myths and misconceptions about the effect of the modern environment and food risks abound, and many people do not know what foods may trigger a reaction or how to get the best treatment for themselves or their children. the tests on the market for diagnosing symptoms, and includes those alternative medicines for which there is firm scientific evidence of effectiveness. As well as providing information about the medical management of allergic conditions it offers useful self-help techniques. The guide also covers why allergies are becoming more common, how to cope with an asthma attack, recognising the signs of anaphylaxis, the availability of treatment on the NHS, lifestyle and environmental factors and how to reduce your likelihood of suffering from allergic symptoms.