Reactions on the surface of your eye may stem from a condition known as conjunctivitis. This may result in swollen eyelids, itching, watery eyes and redness. Although conjunctivitis may cause uncomfortable symptoms, this condition does not trigger a food allergy. In fact, the opposite may happen. An allergic reaction to a food such as nuts or wheat could result in eyelid swelling or other conjunctivitis symptoms. Understanding these two conditions may help you identify a problem early.
Food Allergy
An allergic reaction to food will only occur if your immune system determines a food or component harmful to your body. Conjunctivitis does not trigger this condition. An allergy may occur in anyone and stems from the chemical reaction. With a food allergy you may experience a rash, stomach upset, dizziness and swelling of your face, mouth or tongue. You could experience swollen eyelids, eye redness and itching on the surface of your eyes as well. In severe reactions you may have swelling in the tissues of your throat, and this can result in difficulty breathing.
Other Conjunctivitis Causes
Allergic conjunctivitis may not only stem from a food reaction but reactions to allergens such as pet dander, dust or pollen. Bacteria, viruses and fungi may also result in forms of conjunctivitis, each causing similar symptoms. Your eye doctor will need to examine your eyes to determine if an allergic reaction or infection caused your symptoms.
Treatment
Mild allergic reactions will typically respond well to over-the-counter antihistamines or other allergy medications. If you have an eye reaction, your doctor may recommend over-the-counter allergy eye drops to reduce swelling and other symptoms. In severe reactions that cause difficulty breathing and any other life-threatening symptoms, you will require immediate medical attention. Your doctor may recommend that you carry an epinephrine injection with you at all times if you have a history of severe allergic reactions. This injection will help reverse the reaction and prevent your airway from closing.
Considerations
A food allergy does not occur from conjunctivitis, and if you experience food allergy symptoms, you should avoid eating that food in the future. If you suspect a food allergy but do not know the food that caused your reaction, talk to your doctor about allergy testing that will help determine foods or other allergens your body does not tolerate.
