If you have eczema, eating foods that contain histamine may trigger an outbreak of the rash. Eczema is a chronic skin condition that is incurable and is mostly found in young children but can last a lifetime. If you notice that certain foods cause a flare-up of eczema, talk with your doctor. In some instances eczema may be a sign of a food allergy, even if the food does not contain histamine. Part of the chemical reaction that occurs in the body from a food allergy is increased levels of histamine, which can lead to an eczema outbreak.
Eczema
Increased histamine production can cause an flare-up of eczema. Eczema is a hypersensitivity of the skin that is similar to an allergic reaction but does not always include immunoglobulin E antibodies. Common symptoms of eczema include ear discharge, blisters that ooze and crust over, raw areas of the skin, skin color changes, thickened areas of the skin that are leathery, skin redness and general inflammation around the blisters, according to PubMed Health. Children under 2 years may cause the rash to develop on the scalp, hands, feet and face. In adults, the rash typically develops on the knees, elbows, neck, feet and hands.
Histamine in Foods
Histamine is a hormone in the body that helps defend the body from potential infections but too much histamine may inflame the skin, causing eczema. Histamine-rich foods may include tuna, spinach, beer, wine and eggplant, according to the American College of Gastroenterology. Eating foods high in histamine can trigger mast cells to produce more histamine, leading to a severe eczema outbreak. During a severe eczema outbreak, a rash develops anywhere on the body. Open skin from scratching the rash can lead to secondary skin infections.
Treatment
If you have an eczema outbreak, call your doctor. Avoiding foods that are high in histamine and foods that trigger an allergic reaction is the most effective way to prevent the skin condition from flaring up. Eczema is not only triggered by what you eat; harsh detergents and stress contribute as well. Keep your skin moisturized and avoid wearing tight-fitted clothing, according to FamilyDoctor.org. If your doctor prescribes corticosteroid cream, apply it only to the affected areas.
Testing
Your health care provider may recommend allergy tests to determine if you have any food allergies. Allergy tests look to identify the production of immunoglobulin E antibodies when certain food proteins enter the body. Skin and blood tests are commonly ordered to diagnose a food allergy.
