The present invention provides a device for improving the cosmetic appearance of the skin, comprising a housing, said housing comprising: a. N electrodes, where N is greater than two, said electrodes configured to transmit RF energy to said skin so as to provide RF treatment to said skin； b. energy generating means for generating N/2 independent signals of predetermined waveforms, frequencies, and amplitudes； each of said N electrodes in independent communication with said energy generating means； c. at least one capsule, adapted to contain at least one medicament； said capsule within said housing； and d. M needles in fluid communication with said capsule； where M is greater than one； wherein said medicament is applied to said skin through at least one of said M needles either prior to or during said treatment, such that said medicament is applied in conjunction with said treatment.
