How the body reacts to an allergen
Allergies are a complex immune response in which the body senses an otherwise harmless substance as a threat. When an allergen is encountered, the immune system responds by releasing histamines and other chemicals into the bloodstream, causing symptoms such as sneezing, wheezing, or hives. These reactions are intended to help eliminate the perceived threat from the body, but they can also cause serious health problems and discomfort for those who suffer from allergies. Ultimately, understanding how allergies work is critical for anyone who wants to live a healthy and comfortable life despite their allergic sensitivities.
Your mucous membranes and allergens
Mucous membranes are found throughout the body, lining various cavities and covering surfaces that come into contact with the external environment. One of their primary functions is to act as a barrier against harmful substances, such as bacteria and viruses. However, mucous membranes can also become irritated or inflamed in response to allergens, or pet allergens. When this happens, mucous membranes produce excess mucus in an attempt to flush out the allergen. This can lead to symptoms such as runny nose, watery eyes, and sneezing. In severe cases, mucous membrane inflammation can cause difficulty breathing.