allergy
intro
An allergy is an overreaction of the immune system to a specific substance, such as pollen, dust, or certain foods, which the body mistakenly identifies as a threat. This overreaction triggers the release of chemical mediators, leading to a range of symptoms, from mild discomfort to life-threatening reactions. By avoiding exposure to the allergenic substance or using medication to manage symptoms, individuals can alleviate the discomfort associated with an allergy and live a healthy, normal life.