Hello Allergic rhinitis is inflammation of the inside of the nose caused by an allergen, such as pollen, dust, mould or flakes of skin from certain animals. 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. Skin prick test is done to find out allergen causing problem. You can also try immunotherapy. Consult allergist or physician.