Nuts. Class pets. Gym class. They sound innocent, but these items and activities at school can have hidden dangers for children with allergies or asthma. More than 9 million children younger than 18 suffer from these conditions. Some are vulnerable to a food allergy, while others can suffer an asthmatic attack induced by exercise or pet dander, according to the American Academy of Allergy, Asthma & Immunology.

That's why the organization recommends that children and families become aware of common allergens and asthmatic triggers at school, including: dust mites, chalk dust, pollen and molds, exercise, insect stings and dander from a class pet or animal hair on someone's clothing.

Children with food sensitivities also should not share food with friends. Foods that account for 90 percent of food allergies are milk, eggs, peanuts, wheat, soy and tree nuts.

Suggestions to minimize problems:

•See an allergist or immunologist for an evaluation.

•Tour the school to identify potential allergy or asthma triggers.

•Meet with teachers and the school nurse to discuss your child's condition.

•Inform cafeteria staff and teachers of foods to which your child is allergic.

•Have your child bring a sack lunch.

•Advise physical-education teachers and coaches about asthma and its warning signs.

•Make sure your child has a dose of auto-injectable epinephrine handy and that teachers and the school nurse know how to use it.

For details, see www.aaaai.org.

Nancy Churnin