The method of laser therapy of various inflammatory diseases has been applied widely in medical practice. It provides anti-inflammatory and analgesic effects. In the present study laser radiation of a red spectrum in a pulse mode was used for treatment. As a result 95% of patients with allergic rhinitis did not show any signs of complicated nasal respiration, attacks of sneezing, plentiful allocation of the mucous secret, and at 98% of patients with rhinosinusitis purulent discharges in nose, morbidity in paranasal sinuses, headaches have disappeared. The rhinoscopic picture of the examined patients was characterised by that the mucosa has obtained pink colour, nasal conchas considerably reduced and by that nasal breath has improved. Thus, the authors came to a conclusion that laser application in complex treatment of patients with allergic rhinitis and rhinosinusitis allows to receive high medical and economic efficiency, the method has anaesthetising effect and by the increase of Î2-transport function of blood, blood circulation in the damaged sites and the impoverished zones of all organism improves.