How Long Does Zyrtec Take to Work? Understanding the Timeline for Relief
Zyrtec, known generically as cetirizine, is a widely used antihistamine for alleviating symptoms of allergies, including hay fever, hives, and itchiness. It operates by blocking the action of histamine, a substance in the body that causes allergy symptoms. One of the most common questions people have when starting Zyrtec is how long it takes to … Read more