Go to a doctor now if: EMERGENCY: swelling of lips/face/tongue, breathing difficulty, widespread hives, vomiting or collapse after a food (anaphylaxis — call emergency services). Also see a doctor for faltering growth, blood in stool, or many suspected triggers — testing should be doctor-led.
Food-first comfort
A calm, food-first observation method (inspired by Eliminate-Add-Try): keep a simple food-and-symptom diary; with a doctor's guidance, gently pause ONE suspected common trigger (often cow's milk, wheat, egg or certain nuts) for 2-3 weeks, then reintroduce and watch. Meanwhile offer varied whole home-cooked meals.
What to nourish
Naturally varied whole foods — seasonal fruit and vegetables, dal, rice, millets, curd (if tolerated) — so removing one food never leaves a nutrition gap.
Never
Do NOT cut out major food groups (milk, wheat, whole protein sources) long-term on your own — this risks poor growth. No honey under 1 year. Never delay care for a true allergic reaction to 'test' a food.
Care at home
Many everyday niggles ease when one clear trigger food is gently identified and the diet stays varied. This is careful observation, NOT self-diagnosis of allergy; suspected true allergy needs medical testing.
Related guides
When to see a doctor. Children are not small adults. This guide offers food-first comfort for a parent to consider; it gives no medicines, doses or supplements for children. A paediatrician decides on treatment. When in doubt, go.