Cetirizine is an antihistamine used to relieve allergy symptoms such as watery eyes, runny nose, itching eyes /nose, sneezing, hives, and itching. It works by blocking a certain natural substance (histamine) that your body makes during an allergic reaction.
Gas-Producing Foods: Milk and Dairy Products. Milk and other dairy products contain a sugar called lactose, which can be difficult for your digestive tract to process if your body doesnât have enough of the enzyme lactase. Cheese, ice cream, and milk all contain lactose, and may cause excessive gas in people.
1 Dairy products can be a source of intestinal distress and bloating if you have trouble digesting lactose, or milk sugar. 2  Whole grains, recommended for their many health benefits, can sometimes cause bloating and gas problems. 3  One reason whole grains are so healthy is their high fiber content. Overeating is probably the most common cause of bloating. 2  Smaller portions should ease the pain. 3  Eating rich and fatty food can make you feel uncomfortably stuffed. 4  Fat takes longer to digest than protein or carbohydrates, so it keeps the stomach full longer.