Dual-Frequency Ultrasound as a New Treatment Modality for Refractory Rosacea: A Retrospective Study

BACKGROUNDDual-frequency ultrasound (DFU) has emerged as a new treatment modality for improving inflammatory skin disorders. Although there have been few pilot studies, there are a limited number of studies that investigated efficacy of DFU on refractory rosacea.OBJECTIVEThis study investigated the