FIELD : medicine.SUBSTANCE : present group of inventions relates to medicine, namely to otolaryngology and immunology, and relates to treatment of allergic rhinitis. For this purpose, a composition containing mometasone furoate and olopatadine hydrochloride is administered to a patient. Said composition is administered nasally in the form of 2 puffs into each nostril 2 times a day. Each puff contains 25?mcg of mometasone furoate and 665?mcg of olopatadine hydrochloride.EFFECT : introduction of the composition provides an effective treatment of allergic rhinitis due to the synergistic effect of its components.36 cl, 6 dwg, 6 tbl, 4 ex