Not all people face the disease of allergies in life but still it creates number of issues for those people who are suffering from it. People are not born with allergy but it develops day-by-day. In simple words, allergy is a reaction of human body under particular circumstances. Any individual can face this disease without any discrimination of age, gender, nationality, race etc. Generally, allergy happens when immune system of body goes awry due to some issues.As far as reason is concerned, experts or doctors can not tell you one particular reason behind allergy. One of the biggest and recognized causes is genetic. Yes, most of the people get this disease from their parents, either mother or father. There are many kinds of allergies, like food allergy, weather allergy, commodity allergy etc. Cold in particular weather can be a good example of allergy or sneezing on the road due to dust is another common example of allergy.
Allergy is not dangerous disease but it can be dangerous under particular circumstances. There is only little medicine available which can eliminate the possibility of allergy. However, experts and doctors allow people take good care and ignore those circumstances which create problem for your body.