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UC Davis Health System

UC Davis Health System

Meeting the challenge of severe food allergies at school

Preparation is key for avoiding restricted foods, dealing with reactions

children having lunch at school Allergic reactions often occur at school: in the cafeteria, during class celebrations, or while making craft projects, such as those using peanut butter or walnut shells.

Most parents send their children off to begin a new school year with excitement. But parents of children with severe food allergies typically feel real fear. Will their children successfully avoid the foods they are allergic to?

Infants and young children are most commonly allergic to cow's milk, eggs, soy, peanuts and wheat. Most of these reactions involve skin rashes (eczema) or gastrointestinal symptoms and are usually outgrown by age 3. However, allergies to peanuts, tree nuts, fish or crustaceans (shrimp and crab) are often more severe and are usually lifelong.

“About 1 percent of people in the United States have peanut or tree nut allergies, and studies suggest peanut allergy is rising in incidence,” says Suzanne Teuber, an allergist and professor of medicine in the UC Davis Health System. “For some, the reactions are truly life-threatening. Peanuts and tree nuts together account for about 90 percent of fatal reactions reported to foods in the U.S. The most commonly implicated tree nuts are walnuts, pecans, cashews and brazil nuts, and many people react to more than one. We are also seeing more sesame seed allergy in recent years.”

Common symptoms

An allergic reaction typically occurs within minutes, but sometimes up to two hours after exposure. Symptoms may be mild, with just an itching sensation in the mouth, or may involve swelling of the air passages, accompanied by wheezing and respiratory distress, which can lead to death within minutes. Hives may appear on the skin, and gastrointestinal symptoms may be present, including vomiting, cramping or diarrhea. Blood pressure may drop, which can lead rapidly to loss of consciousness and death.

Allergic reactions can occur not just by eating the food, but sometimes by inhalation or more rarely by skin contact. The daughter of a UC Davis physician first experienced a reaction on a flight when the stewardess opened bags of peanuts and passed them across her.

"It's essential that parents meet with their child's teacher and school principal to discuss the problem.”
— Dr. Suzanne Teuber
 

Allergic reactions often occur at school: in the cafeteria, during class celebrations, or while making craft projects, such as those using peanut butter or walnut shells.

“That's why it's essential that parents meet with their child's teacher and school principal to discuss the problem,” saysTeuber. “Make sure they can recognize an allergic reaction, and develop a written plan with the child's physician to deal with emergencies. This information should be shared with the rest of the school staff and cafeteria workers.”

Teuber also advises parents to institute an “only-from-home” policy, in which the child knows to eat only food from home, and to provide teachers safe snacks to have on hand when other children get a special treat. “Too often, nuts or seeds are a hidden ingredient in cupcakes or cookies brought from stores or other people's homes,” she says. “Even if nuts are not mentioned on a label, ingredients may be processed on machinery that previously handled nuts, leaving residues that can cause a reaction.”

Teuber advises developing a written food allergy action plan the child’s doctor, the parents, and school staff. Children with a history of a severe reaction should wear a medical alert bracelet and have self-injectable epinephrine available at school. Depending on the age of the child, the child and school personnel should be instructed in its use. Epinephrine should be administered at the start of an allergic reaction, and 911 should be called. Many people mistakenly wait and see if severe symptoms develop before taking action. Such delays have had tragic outcomes. Even if the child seems to recover, symptoms can recur, and the child should be under observation for several hours in an emergency room.

“No one should underestimate the dangers of severe food allergies,” says Teuber. “But parents should also not be paralyzed by fear. Teach children to recognize what is safe. Practice with them ways to be assertive in discussing their problem, refusing forbidden food, and asking for help if they feel they are having a reaction. Help them at an early age to develop lifelong skills to cope confidently with this potentially life-threatening condition.”

Resources

The Food Allergy & Anaphylaxis Network is a national organization dedicated to helping families and individuals cope with severe allergies and has developed a Food Allergy Action Plan example that is free for download. Check out their Web site at www.foodallergy.org or call (800) 929-4040 during normal working hours on the East coast.