asthma and allergy

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allergy known as one of asthma symptom. do you suffer from allergy? what is allergy is about? iv been told by a friend, who is a doctor, he said that allergy occurs when a person's immune system reacts to substances in the environment that do bother most people. these substances are known as allergens and are found in house dust mites, pets, pollen, moulds and even foods! another thing that you should know about is atopy. atopy is the genetic tendency to develop allergic diseases. people with atopy are said to be atopic. so when these atopic people are exposed to allergens they can develop an immune reaction that leads to allergic inflammation. which like redness and swelling. and those things will cause symptoms in the nose and eyes. you can get hay fever due to allergic rhinitis or conjunctivitis. some might get symptom in the skin like eczema, hives. and let me highlight here, it can cause symptom in the lungs thus leads to asthma. are you atopic? are you allergic to some foods or something? give yourself a check. you dont lose anything!