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 bones of the forehead, which contain the frontal sinuses.