Allergies? Alleriges is a common misspelling of allergies.
Allergies occur when the immune system reacts to a normally harmless substance, such as pollens, certain foods, or medicines. There are two main types: seasonal and perennial. Seasonal allergies, such as hay fever, occur at specific times of the year; perennial allergies occur year-round. It is unknown why one person develops allergies and another does not, although the tendency may be inherited. Allergies are commonly treated with medication, reducing contact with the allergens, or shots.
(Click Allergies to learn more, including possible symptoms of allergies, additional triggers, and what happens in the body during an allergic reaction.)