Indoor allergens, like dust mites, pets, and mold, are more closely associated with asthma development than seasonal allergens like grasses, trees and weeds. This is because exposure to indoor allergens is constant and, in most cases, unavoidable. For example, dust mite allergy results in a 50-fold increased risk for the development of asthma; pet allergy results in a 20-fold increased risk; and grass allergy only results in a 10-fold increased risk for developing asthmatic symptoms, due to its short-term exposure.
The effects of constant allergen exposure on your lungs may go unnoticed for a while. Studies have shown that inflammation in the nose was found even in asthma patients who reported no allergy symptoms. Relying on your symptoms to indicate your need for asthma medication can lead to an overestimation of asthma control. This may result in insufficient treatment, reduced lung function, and a worsening state of your overall health. It has been found that patients with poorly controlled allergy symptoms tend to have more severe episodes of asthma which become increasingly difficult to control.
If you require daily medication for your asthma, you should consider being evaluated for allergy. By diagnosing and treating your allergies, you may start to remove a common trigger of your asthma symptoms.