The present invention provides an indirect method and accompanying apparatus for supplying a high concentration of medicaments, particularly antibiotics, to the nasal sinuses by first loading the medicament into the cerebrospinal venous system (CVCS) via a Valsalva manuever. Because the CVCS is a valveless, three-dimensional closed system, traditional physiological dogma such as veins always draining tissues does not always apply. Instead, because in its closed-system blood can flow in any direction, the blood of the CVCS and any medicaments that it contains will be drawn to any portion of it where there is increased outflow, such as the copious venousderived sinus fluid drainage present during nasal allergy or nasal infection. Thus, the very nasal congestion that impedes the effectiveness of direct medicament application, such as seen with nasal inhalers or systemic antibiotics, aids in applying the medicament indirectly to the nasal sinuses via the CVCS. Additionally, the present method has the benefit of delivering medicaments that, unlike present treatment regimens, are not limited solely to those medicaments that can be successfully absorbed from the G.I. tract. This means that, in the case of antibiotics, the bacteria infecting this portion of the CVCS will not be as resistant to treatment if they have not had prior exposure to this new line of antibiotics. Finally, if the infection extends to the eardrums, making the Valsalva maneuver painful, or if the patient is simply unusually sensitive, then earplugs to reduce the stress on the eardrums may be worn while the patient performs the Valsalva maneuver.La présente invention porte sur un procédé indirect et sur un appareil correspondant qui permettent de fournir une forte concentration de médicaments, en particulier des antibiotiques, aux sinus de la face, en chargeant tout d'abord le médicament dans le système veineux cérébrospinal (CVCS) par une manœuvre de Valsalva. Etant donné que le CVCS est un système fer
