Signs and symptoms of a food allergic reaction that staff should recognize include:

解析

An allergic reaction shows up as hives, itching, swelling of the face, lips, or throat, wheezing, and difficulty breathing, and it can progress to life-threatening anaphylaxis within minutes, so staff should call for emergency help immediately. A stomachache that first appears several hours later fits the pattern of a foodborne illness or a food intolerance, not a rapid allergic reaction: an intolerance is a digestive reaction, not an immune one, and it does not cause anaphylaxis. Improved appetite, energy, concentration, alertness, and hydration are the opposite of a reaction, and a craving for another portion is not a symptom of one either.