Research recommendations coming out of this guidance Further research on the efficacy and safety of intranasal phototherapy for allergic rhinitis should include: details of patient selection including medication use; underlying medical conditions; the intensity, duration and wavelength of light used; patient-reported outcomes; comparison with existing treatments; and the effects of repeated long-term use. NICE may update the guidance if further evidence is published.
Further research on the efficacy and safety of intranasal phototherapy for allergic rhinitis should include: details of patient selection including medication use; underlying medical conditions; the intensity, duration and wavelength of light used; patient-reported outcomes; comparison with existing treatments; and the effects of repeated long-term use. NICE may update the guidance if further evidence is published.