An optical therapy device for providing therapeutic light to a person's nasal cavity includes a body and at least one UV light source in or on the body. A distal end of the body is configured to be inserted into the person's nasal cavity. The body can be configured to be hand-held. The optical therapy...http://www.google.fr/patents/US8109981?utm_source=gb-gplus-shareBrevet US8109981 - Optical therapies and devices