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.
Evaluate the amount of dairy in your diet. Some people become lactose intolerant as they get older. This can cause gas and bloating. 1  If this is the case for you, you may need to reduce the amount of milk products in your diet such as milk, cheese, cream, and ice cream.