If you come into contact with a substance your immune system views as a threat, an allergen, such as animal dander, a certain food, or a plant, your immune system releases a chemical called histamine. The release of histamine, along with other substances released by the body, trigger allergy symptoms that can range from mild to severe and can affect your skin, sinuses, airways, and/or digestive tract.
Mild and more common allergy symptoms include:
- Sneezing;
- Watery eyes;
- Runny nose;
- Wheezing;
- Coughing;
- Stomach pain;
- Hives;
- Itchy mouth or ears;
- Swelling of lips, tongue, or throat.
Anaphylaxis is a rare, but serious, life-threatening allergic reaction. If you or someone around you is experiencing symptoms of anaphylaxis, including loss of consciousness, a drop in blood pressure, and severe shortness of breath, call your local emergency number immediately.
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