Locations:
Search IconSearch
January 20, 2022/Health Conditions/Allergies

What Are Signs That My Child Has a Food Allergy?

The short answer from a pediatric allergist/immunologist

A child eating a strawberry from a bowl

Q: I suspect my child might have a food allergy. What are the telltale signs and how should I take action?

A: Typically, with a classic food allergy, symptoms begin within 30 to 60 minutes of eating a particular food. Sometimes it can be hours later, but that’s very rare.

Advertisement

Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission. We do not endorse non-Cleveland Clinic products or services. Policy

There are many types of adverse reactions to foods, but when we talk about food “allergy,” we’re usually referring to immediate allergic reactions caused by an allergy antibody, with potential for anaphylaxis. Reactions vary from person to person, but allergic reaction symptoms can include:

  • Itchy mouth.
  • Painful or itchy throat.
  • Upset stomach.
  • Vomiting.
  • Diarrhea.
  • Hives.
  • Trouble breathing.
  • Change in voice.

We get very concerned with breathing trouble or a change in a child’s voice — those can indicate more serious reactions. It’s very rare, but potentially a food allergy reaction could be fatal.

In the pediatric age group, the most common allergies are to milk and eggs. Peanuts and tree nuts are also common allergy triggers, as well as soy, wheat, fish and shellfish.

Sesame is an emerging concern in the United States, and the Food and Drug Administration (FDA) recently added this as a required allergen on packaged foods, similar to what you see in the grocery store on labels for milk and eggs.

Parents often tell me how scared they were the first time their child had a reaction, and that’s very understandable. If you have reason to suspect your child is having a serious food allergy reaction, take a deep breath. You know your child better than anyone else in the world. If you are really, truly worried, then get them to an emergency room. Call EMS (emergency medical services) and tell them that you have a child who is potentially having a food allergy reaction so that they send the right kind of emergency medical services to your home. Or, if you live within reasonable driving distance to a hospital, just get them there quickly yourself.

Advertisement

Very mild reactions such as a few hives can be sometimes treated with antihistamines like Zyrtec®, which can help a child feel better as the reaction goes away. But for anything more serious, we recommend epinephrine and treatment with emergency medical services.

If your child does indeed have a food allergy, make sure you’re taking the proper precautions for them at school and on play dates as well.

Pediatric allergist/immunologist Jaclyn Bjelac, MD.

Advertisement

Learn more about our editorial process.

Related Articles

Person holds a tissue to their nose while another places an ornament on the Christmas tree
December 13, 2024/Allergies
Could You Be Allergic to Your Christmas Tree?

You’re more likely to be allergic to the debris that came in with this festive evergreen

Baby receiving a shot in their leg by healthcare provider
December 5, 2024/Children's Health
COVID-19 Vaccine for Kids: What To Know and Why It’s Important

Children as young as 6 months should get vaccinated, but dosage guidelines depend on kids’ ages and past vaccines

Person wearing earbuds, sitting in bed undercovers, coughing into their elbow, with laptop open on lap
December 3, 2024/Lung
Best Ways To Stop a Cough

Certain medicines and home remedies like ginger, honey and thyme can help calm a cough

Happy, laughing child and caregiver sitting on couch holding video game controllers, playing video games
December 2, 2024/Brain & Nervous System
Are Video Games Good for You? Your Brain Thinks So

Imagination, completing tasks and social interactions are all key benefits for your brain

Parent hugging child within a glass house, with other siblings in the background outside of it
November 29, 2024/Children's Health
What To Know About Glass Child Syndrome

First things first: It doesn’t mean anybody did anything wrong

Baby, lying down, eyes closed, yawning
November 27, 2024/Children's Health
15 Signs That Your Baby Is Tired

Yawning is a clear signal, but frowning, ear-pulling and finger-sucking can be, too

Face of sleeping newborn baby, face being lightly touched by caregiver hand
November 19, 2024/Children's Health
Newborn Lip Blisters: What Causes Them and When To Seek Care

Your baby can develop lip blisters from an infection or because of the way they feed

Caregiver holding baby in babysling while pushing shopping cart in grocery store
November 18, 2024/Children's Health
Babywearing: What Is It and What Are the Benefits?

When done safely, carrying your baby in a sling or other device can free your hands and soothe your little one

Trending Topics

Person touching aching ear, with home remedies floating around
Home Remedies for an Ear Infection: What To Try and What To Avoid

Not all ear infections need antibiotics — cold and warm compresses and changing up your sleep position can help

Infographic of foods high in iron, including shrimp, oysters, peas, cream of wheat, prunes, eggs, broccoli, beef and chicken
52 Foods High In Iron

Pump up your iron intake with foods like tuna, tofu and turkey

Person squeezing half a lemon into a glass of water
Is Starting Your Day With Lemon Water Healthy?

A glass of lemon water in the morning can help with digestion and boost vitamin C levels, and may even help get you into a better routine

Ad