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.
In general, a healthy breakfast contains protein, fruits, whole grains, or vegetables, says Ruth Frechman, MA, RDN, CPT, nutritionist and author of The Food is My Friend Diet.. Typically, you want to include foods from at least three of these groups, says Frechman.
In a study published in 2013 in the European Journal of Nutrition, 30 healthy men were randomly assigned to eat one of three breakfastsâeggs on toast, cornflakes with milk and toast or a croissant and orange juiceâon three separate occasions, each separated by one week.