Background: Allergic rhinitis (AR) presents as the main and most invasive symptom in the blocking of the nose. This condition is almost always related to hypertrophy of the inferior turbinates. When the medical treatments are found to be insufficient to solve the obstructive symptom of the patient, the quality of life is considerably impaired and it is often necessary to submit the patient to a surgical approach. In the present study we aimed to establish the efficacy and safety of a new technique recently introduced for the shrinkage of hypertrophic turbinates using a specific device, based on a new radiofrequency energy that does not produce thermal mucosal damage, viz., quantic molecular resonance (QMR) in a group of patients with persistent moderate–severe allergic rhinitis, in addition to standard medical treatment (nasal steroid and oral antihistamine). Methods: All patients were randomly assigned to two homogeneous groups (group A, control subjects; group B, treated patients); each group included 145 individuals. During the study, both groups received standard medications (ebastine, 10-mg tablet, and budesonide nasal spray at 100 micrograms/nostril per day) for 90 days. Before the medical treatment, patients in group B underwent inferior endoscopic turbinoplasty using QMR. All of the patients enrolled in this study were submitted to a complete otorhinolaryngologic evaluation with objective clinical examination (basal rhinomanometry, nasal provocation test rhinomanometry, and mucociliary transport time), endoscopy, and questionnaires (22-item Sino-Nasal Outcome Test and visual analog scale for nasal symptoms). Results: Greater efficacy has been achieved using a combined approach with the association of medical and QMR treatment, compared with medical treatment alone, in the control of AR associated with hypertrophy of the inferior turbinates, in particular in the reduction of turbinate volume at rhinoendoscopy. Conclusion: QMR inferior turbinoplasty, in conjunction with medical therapy, improves the nasal flow, without any thermal mucosal damage, more effectively when compared with medical treatment alone in persistent moderate-to-severe AR. In particular, local reactivity, as measured with nasal provocation test, was noticeably reduced. (Am J Rhinol Allergy 28, 164–168, 2014; doi: 10.2500/ajra.2014.28.3990) A llergic rhinitis (AR) presents as the main and most invasive symptom in the blocking of the nose. This condition is almost always related to hypertrophy of the inferior turbinates, area of the immunophlogosis, which leads to persistent inflammation with edema and prolapse of the mucosa obstructing the nasal fossa. Hypertrophy of the inferior turbinate may become irreversible when the vascular dilatation leads to prolapse of the submucosal venous sinusoids, which no longer respond to the sympathetic system and to medical treatment.1,2 Several studies have revealed that a percentage (between 10 and 25%) of the population present nasal obstructive symptoms with hypertrophy of the inferior turbinates, correlated with the allergy.3 When the medical treatments (antihistamines, steroids, and specific immunotherapy) are found to be insufficient to solve the obstructive symptom of the patient, the quality of life (QoL) is considerably impaired and it is often necessary to submit the patient to a surgical approach to improve the nasal airflow.4 Surgery of the turbinates is, in fact, very common and represents the eighth procedure, in order of frequency, performed in otorhinolaryngologic surgery. Over the years, numerous surgical techniques have been proposed for the treatment of the inferior turbinate hypertrophy: the main problem was to increase the nasal airflow while maintaining the function of the mucosa, area of important protective actions, and of the absorption of medications useful in the long-term postoperative treatment of the allergic phlogosis (turbinectomy, submucosal emptying, cryocoagulation, electrocaustication, laser, radiofrequencies, and coblator).2,5,6 Many of these techniques (in particular those performed at high temperatures and extremely destructive, with almost complete amputation of the turbinate, despite the guarantee of an increase in the nasal airflow) were accompanied by the loss of nasal sensitivity and by the formation of such air vortex to the so-called “empty nose” syndromes with the formation of crusts, bleeding, and synechia, resulting in an extremely negative impact on the QoL of the patients.2,7–9 In the present study we aimed to establish the efficacy and safety of a new technique recently introduced for the shrinkage of hypertrophic turbinates using a specific device, based on a new radiofrequency energy that does not produce thermal damage, viz., quantic molecular resonance (QMR), in a group of patients with persistent moderate–severe AR, in addition to standard medical treatment (nasal steroid and oral antihistamine).10