What is a common sign of an allergic reaction?

Nausea is indeed a common sign of an allergic reaction. Allergic reactions occur when the immune system overreacts to a substance (allergen) that is normally harmless, such as certain foods, pollen, or medications. When this happens, the body releases chemicals, including histamines, which can lead to various symptoms. Nausea can result as the body responds to the allergen, affecting the gastrointestinal tract.

Common allergic reaction symptoms may also include hives, itching, swelling, or difficulty breathing. Nausea is part of the body’s overall response and is typically one of the gastrointestinal manifestations that can occur. Understanding this connection helps in the early identification and management of allergic reactions, which can be crucial in ensuring the safety and well-being of affected individuals.