Allegra (fexofenadine) allergy: I am not quite sure of the question. Allegra (fexofenadine) is a non drowsy antihistamine to treat symptoms of allergic or non allergic rhinitis. The symptoms include runny stuffy nose, sneezing, itchy and watery eyes. It can also help itching of the skin.
Canned and cooked tomatoes will contain significantly less MSM per serving. Corn may contain as much as 0.11 ppm, or 0.11 milligram per liter, of MSM. That's less than foods like coffee, which has an MSM concentration of 1.6 ppm, and Swiss chard, with about 0.2 ppm, but more than alfalfa, which contains only 0.07 ppm. It does contain biotin, but not much: 0.06 microgram in a 1/2-cup serving of canned whole corn.
Various foods contain yeast extract or yeast proteins such as cottage cheese, yogurt, gravies and very ripe cheeses like brie. Other fermented foods that contain yeast are soy sauce, dressings, cider, dried fruits, chili sauce, sauerkraut and tomato ketchup. You'll also need to watch out for vinegar and foods that contain vinegar such as pickles, vinaigrette, mustard, chutney, canned roasted peppers and relishes.