User:Laurenlambs

Causes: When an allergen enters your body it causes allergic sensitivity because your immune system is not used to the certain substance. Certain allergens may fall onto the lining of your eyes, nose, or ariway of a person and this will cause an allergic reaction. Certain particles and even some insects are the main causes of indoor allergens. Dust particles are a very common indoor allergen. These dust particles are usually found in any cloth material.