Hello, Allergic rhinitis typically causes cold-like symptoms, such as sneezing, itchiness and a blocked or runny nose. These symptoms usually start soon after being exposed to an allergen. It's difficult to completely avoid potential allergens, but you can take steps to reduce exposure to a particular allergen you know or suspect is triggering your allergic rhinitis. Antihistaminics also helps you. Try immunotherapy. Skin prick test is done to identify allergens. Consult allergist .