Abstract: A nasal dilation device comprises a pair of dilating frames for insertion into respective nasal passages. An external abutment member is joined between the pair of dilating frames to abut an external nasal valve. Each dilating frame comprises a frame member wound in a generally helical pattern about a longitudinal axis of the dilating frame to form a plurality of windings spaced from one another in a direction of the longitudinal axis. By providing a frame formed of a helical member, a resulting open frame design of a dilating frame is provided which is easy to manufacture, of simple structure, with substantially no protruding ends or edges so that the device can be easily and safely inserted into a nasal passage without tearing or causing harm to the soft internal tissues thereof. Outward dilating pressure applied to the internal nasal passage is also distributed over a larger area for comfort.