Allergic Rhinitis and Food Allergies
Allergic rhinitis is an immune system response to certain allergens, such as dust mites, pollen, and pet dander. It can cause symptoms such as a runny nose, itchy eyes, and sneezing. Certain foods can also trigger an allergic reaction, leading to rhinitis.
Common food allergens
The most common food allergens are dairy products, peanuts, tree nuts, shellfish, wheat, soy, eggs, and fish. Allergic reactions to these food items can range from mild to severe. Mild reactions may include itching and hives, while severe reactions can include anaphylaxis, a life-threatening condition.
Cross-reactivity
Cross-reactivity is a phenomenon in which exposure to one food allergen can cause a reaction to another food. For example, if you are allergic to shrimp, you may also have an allergic reaction to crab or lobster.
Food additives
Food additives such as food dyes and preservatives can also trigger allergic reactions. These additives are often found in processed foods, such as canned soups and frozen dinners.
Treatment
If you have been diagnosed with an allergy to a food, the best way to prevent an allergic reaction is to avoid the food altogether. In some cases, your doctor may recommend an elimination diet in which you avoid all foods that are known to trigger an allergic reaction.
If your symptoms persist despite avoidance, your doctor may prescribe medications to help manage the allergy. Medications such as antihistamines and corticosteroids can help reduce symptoms such as itching, sneezing, and nasal congestion.
