The holidays revolve around food: Grandma’s stuffing, the neighbor’s cookie exchange, the office potluck. For the millions of Americans with food allergies, that’s also the time of year when accidental exposures spike. A little planning can keep the celebration fun and safe.
The Most Common Food Allergens
Nine foods cause most allergic reactions in the U.S.: milk, eggs, peanuts, tree nuts (like walnuts, pecans, and almonds), wheat, soy, fish, shellfish, and sesame. Holiday favorites hide these ingredients all the time. Pie crusts may contain butter or egg, gravies are often thickened with wheat flour, and desserts can carry traces of nuts from shared baking equipment. When you’re eating someone else’s cooking, don’t be shy about asking what’s in a dish.
How Food Allergies Are Diagnosed
If you think you or your child has a food allergy, guessing isn’t the answer. Avoiding foods you don’t need to avoid can be stressful, and missing a true allergy can be dangerous. An allergist uses several tools to get a clear picture:
- Skin testing: A tiny drop of allergen extract is placed on the skin and lightly pricked. A raised, itchy bump (like a mosquito bite) suggests sensitivity. Results come back in about 15 to 20 minutes.
- Blood IgE testing: A simple blood draw measures the allergy antibodies your body makes against specific foods.
- Oral food challenge: You eat small, gradually increasing amounts of a food in our clinic while our team watches closely. It’s the most reliable way to confirm or rule out an allergy, and it should only be done in a qualified medical setting with emergency treatment ready. Skin and blood tests show sensitivity, not always a true allergy. That’s why your history and, sometimes, a supervised challenge matter so much.
Emergency Medications: Know the Plan
Even careful families have accidents. If someone with a food allergy eats an allergen and develops symptoms like hives, swelling of the lips or tongue, trouble breathing, repeated vomiting, dizziness, or a feeling of doom, treat it as an emergency.
- Use epinephrine right away. Epinephrine auto-injectors (like EpiPen) or nasal epinephrine are the first-line treatment. Don’t wait to see if symptoms get worse. For an injector, press it firmly into the outer thigh; it can go through clothing.
- Call 911, even if the person starts to feel better. Reactions can return hours later.
- Lay the person flat with legs raised (or sitting up if breathing is hard). Don’t have them stand or walk.
- Give a second dose after 5 to 15 minutes if symptoms aren’t improving and help hasn’t arrived.
Antihistamines like Benadryl may ease itching, but they do not stop anaphylaxis. Always carry two epinephrine doses and check the expiration date before the holiday travel rush.
New Options at Our Clinic
Managing food allergy used to mean strict avoidance and hoping for the best. Today, we can offer more.
Xolair (omalizumab) is an injection given every few weeks that blocks IgE, the antibody behind allergic reactions. It’s FDA-approved to reduce the risk of serious reactions from accidental exposure in people with food allergies. Xolair isn’t a license to eat your allergen freely, but it adds a valuable layer of protection.
Oral immunotherapy (OIT) slowly retrains the immune system. Under our team’ssupervision, patients eat tiny, carefully measured amounts of an allergen, with doses raised gradually over time. The goal is to raise the amount of food needed to trigger a reaction, so an accidental bite is far less likely to cause a serious problem. OIT requires commitment and close monitoring, and it isn’t right for everyone, so we’ll talk through whether it fits you or your child.
Enjoy the Season Safely
Read labels every time, talk with your hosts ahead of time, bring a safe dish to share, and keep your epinephrine within reach. If you’d like to explore testing or learn whether Xolair or oral immunotherapy could work for you, we’re here to help. Call our office to schedule a visit and go into the holidays with confidence.
Happy holidays from all of us at Asthma & Allergy of Idaho!
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