How do I spot signs of allergies or food sensitivities?

Early signs to watch for

Food allergies and sensitivities can appear with feeding changes. Common immediate allergic reactions include hives, facial swelling, vomiting, difficulty breathing, or severe lethargy. Sensitivities may cause more delayed symptoms like eczema flare-ups, chronic diarrhea, or discomfort.

What to look for:

• Hives, swelling, respiratory distress, or severe vomiting shortly after eating — seek emergency care.
• Persistent eczema, blood in stools, excessive gas, or poor weight gain may suggest sensitivity.

How to proceed safely

Introduce new foods one at a time and observe for reactions over several days. For families with a history of severe allergies, discuss early introduction strategies for allergenic foods with your pediatrician. If you suspect an allergic reaction, stop the suspected food and contact your pediatrician or an allergist for testing and management plans.