These are located deeper in the skull. Massaging the bridge of the nose and the area just in front of the ear opening (near the TMJ) can help stimulate these deeper cavities.
Note: This paper is for informational and academic purposes. Always consult a licensed healthcare provider before beginning any new treatment for sinusitis. sinusitis massage
A literature search (PubMed, Cochrane Library, Scopus) using terms "sinus massage," "facial massage sinusitis," and "manual therapy rhinosinusitis" reveals a scarcity of high-quality evidence. These are located deeper in the skull