Baby Food Allergy Reaction Emergency

Stop the food when a possible reaction appears. Hives, facial swelling, repeated vomiting, persistent cough, wheeze, voice or cry change, sudden sleepiness, or unusual behavior after eating needs prompt clinical advice, even if the skin looks mild.
Summary
Call emergency services for severe breathing or swallowing trouble, sudden swelling of the lips, mouth, tongue, or throat, blue or gray color, collapse, difficulty waking, or a combination of symptoms affecting different body systems. Use prescribed epinephrine immediately according to the baby's action plan and call emergency services; do not delay for antihistamine, photos, or online advice.
Act on anaphylaxis immediately
Severe breathing or swallowing difficulty, sudden swelling of the lips, mouth, tongue, or throat, blue or gray color, collapse, difficulty waking, or symptoms involving more than one body system can signal anaphylaxis. Use prescribed epinephrine immediately according to the baby's written action plan and call emergency services. Do not wait for a rash, give food or drink, or delay for antihistamine, photographs, a second opinion online, or transport by yourself when emergency services are indicated.
Recognize possible allergic reactions
Watch for hives, widespread redness, facial or eyelid swelling, repeated vomiting, diarrhea, persistent cough, wheeze, voice or cry change, sudden sleepiness, pallor, or unusual behavior after eating. Stop the food and contact a clinician promptly. A little redness only where acidic food touched the skin can be irritation, but do not diagnose from appearance alone. Record exact onset, food, amount, preparation, all body systems affected, duration, and treatment. Photographs can support a history but must not delay care.

Give a concise clinical handoff
State the baby's exact age, eczema and allergy history, previous reactions and tests, developmental feeding stage, exact food and ingredients, preparation, amount, and time eaten. Describe the first symptom, sequence, breathing, mouth or tongue swelling, skin color, responsiveness, vomiting, and all treatment, including prescribed epinephrine and time. Bring the package and original photo only if safe. Ask whether the food should be avoided, whether referral or testing is needed, and what written emergency plan and future introduction schedule to follow.