 [ Symptoms ] do you ever outgrow food allergies or can the severity of allergic reactions change as we age [ Disease ] certain food allergies like nuts and seafood are less likely to be outgrown but most others resolve over time food allergy causes a specific type of reaction such as immediate within minutes to a few hours hives liptongue swelling flushing itching lightheadedness nausea vomiting or low blood pressure every time the offending food is consumed pustules acne like lesions are usually non allergic