The present invention provides a wearable medical support for delivery of a treatment to the nose of a subject comprising: a nose mask formed from a heat moldable sheet of thermoplastic material, said nose mask comprises an aperture dimensioned to fit the nose of the subject, said aperture is flanked by two flaps whereby each flap is configured to be in contact with at least part of a lateral side of the nose; and a device configured to close fit said aperture, said device is provided at one end with an opening for receiving the nose and at the other end with at least one coupling suitable to be connected to one or more tubes for delivery of the treatment to the nose. The present invention further provides a sheet of heat moldable thermoplastic material for molding a mask directly on a subject's nose.