Irrelevant: He can still have asthma and upper airway inflammation, whether due to allergies or not yet to be ruled in later. Negative allergy testing at age 2 doesn't negate allergyto environmental allergen that can develop later in life. Revisit his allergist or check aaaai.org or acaai.org for an allergist in your area, good luck
Answered 2/13/2016
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