Some people have different kinds of illness one of there is allergy. sensitivity an allergy is a chronic condition involving an abnormal reaction to an ordinarily harmless substance called an allergen(1). Therefore ,it cannot be controlled. For example, domestic animals such as dogs have a lot of hair that causes allergy to reaction. Therefore patient with allergies will have a responses like sneezing , redness of the eyes and itchy skin . There are a lot of examples of allergies , and the simplest way to understand the sensitivity this example(2). The solution is useful falling into the allergy is to be avoided as much as possible .However, there are reasons beyond control, such as dust, which will not be far away from allergy because
