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Skin Reactions
One of the most common symptoms of a pesto allergy is skin reactions. This can include hives and skin rashes, which are itchy and red because of the immune system's reaction to the allergen. Individuals can also experience swelling in the face, and particularly around the mouth and eyes.
Shortness of Breath
Sometimes a pesto allergy can cause respiratory symptoms, like shortness of breath. The airways can become constricted and inflamed, causing difficulty in breathing. It may also trigger a cough or wheezing.
Stomach Issues
Another symptom can be stomach or gastrointestinal problems. This can include nausea, vomiting, diarrhea, or stomach cramps. These symptoms usually appear within a few hours of ingesting pesto.
Nasal Congestion
Allergic reactions to pesto can cause nasal symptoms such as sneezing, runny nose, or congestion. This occurs due to the body's immune response trying to expel the allergen from the system.
Tingling in the Mouth
An early symptom of a pesto allergy can be a tingling, itching, or numb feeling in the mouth or throat. This can happen immediately after eating pesto and may be accompanied by swelling of the lips, tongue, and throat.
Anaphylaxis
Although rare, an acute allergic reaction to pesto could potentially lead to anaphylaxis. This is a severe allergic reaction that can cause difficulty in breathing, rapid heartbeat, dizziness, and loss of consciousness. It's a medical emergency and requires immediate attention.
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