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.
Foods that have been sweetened with sugar alcohols such as mannitol, maltitol and sorbitol can cause gas (and bloating) because these alcohols are hard for your body to digest. Check the ingredients of foods labeled low sugar or sugar-free, as they often contain these sugar alcohols.