A device for delivering light to a nasal cavity is provided. The device has a base at a proximal end of the device. The base has a first end that is the proximal end and a second end opposite the first end. The device also has a sleeve operably connected to the base at the second end, an endpiece connected to the sleeve at a joint, a tapered tip for insertion into the nasal cavity, a light source disposed inside the tapered tip, and a power source to supply power to the device. The endpiece moves in the sleeve during pivoting movement about the joint. The angle between the sleeve and the endpiece is changeable from 0° to 40°.