### What is FPIES and How to Manage It Food protein-induced enterocolitis syndrome (FPIES) is a rare type of food allergy that affects the gastrointestinal tract. Unlike typical food allergies that cause immediate reactions like hives, wheezing, or rashes, FPIES symptoms usually appear a few hours after eating the trigger food. Common symptoms include vomiting and diarrhea, which can sometimes be mistaken for a viral infection or food poisoning. #### Common Triggers - Milk and dairy products - Soy or soymilk - Wheat and other grains Some children may also react to foods not commonly associated with allergies. FPIES often begins when a child starts consuming formula or solid foods, although breast milk can sometimes be a trigger. #### Diagnosis and Treatment If you suspect your child has FPIES, consult an allergist or pediatric gastroenterologist. The doctor will review your child's symptoms and family history of allergies. Tests like blood tests and atopy patch tests (APT) can help, but the only definitive diagnosis comes from an oral food challenge (OFC) conducted in a clinical setting. #### Managing FPIES - Remove trigger foods from your child's diet. - Use hypoallergenic formula if needed. - Always check food labels for potential triggers. - Keep a doctor's note explaining your child's condition for emergencies. Most children outgrow FPIES by age 3 or 4, but severe reactions can lead to dehydration and shock, requiring immediate medical attention.