There are four ways to clinically determine whether someone has a true food allergy. In cases of suspected oral allergy syndrome, it is important to distinguish between a true food allergy and an allergic reaction caused by pollen or dust mite cross-reactivity. Oral Allergy Syndrome Testing and Diagnosis If you have a history of severe reactions, discuss an emergency anaphylaxis plan with an expert clinician. I n extremely rare cases ( 1.7 percent of patients), anaphylaxis may occur - a severe allergic reaction that can become life-threatening without immediate treatment. Oral allergy syndrome symptoms may be exacerbated by exercising or consuming alcohol directly after coming into contact with an allergen.
A scratchy sensation, tightness in the throat.Tingling and itching in the mouth, throat, and lips.Symptoms of an oral allergy syndrome reaction include: Reactions typically last a matter of minutes to an hour. While symptoms can certainly be uncomfortable, OAS is not considered a life-threatening allergy. Symptoms of an Oral Allergy Syndrome Reaction Before pursuing treatment, it is important to determine whether you are suffering from cross-reactivity between an environmental allergy and a food, or a true food allergy. While oral allergy syndrome is due to an inhaled environmental allergen, OAS can be misdiagnosed as a true food allergy. The most common pollen allergies connected to oral allergy syndrome include: alder, birch, grass, mugwort, and ragweed. In OAS, the immune system misidentifies food proteins as pollen or dust mite proteins, resulting in an allergic reaction.
OAS is a secondary allergy, meaning that those who have oral allergy syndrome also suffer from environmental allergies such as pollen and dust mite allergies, and occurs because of a cross-reaction between pollen or dust mite proteins and similarly structured proteins in fruits and vegetables.
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