Osteopathy therapy for sinusitis. Therapist using osteopathy techniques on a 12-year-old boy to drain his sinuses in a case of sinusitis. Osteopathy uses massage and manipulation to treat a range of disorders, based on knowledge of the musculoskeletal system. Here, pressure with the thumbs is being used to help clear the paranasal sinuses. These are a set of membrane-lined air-filled spaces in the bones of the face. Here, pressure is being applied to the forehead between the eyes, which is where the frontal sinuses are located.