Devices and methods are provided for applying vacuum near to devices for delivering treatments to tissue adjacent a body cavity, effective to draw adjacent tissue near to such devices and to enhance treatment of the tissue. The present invention also relates to a method for releasing an active compound from a drug delivery device, the drug delivery device comprising a thermo-sensitive polymeric material, a pharmaceutically or biologically active component and an infrared absorbing compound, wherein the drug delivery device is exposed to infrared irradiation thereby crossing a phase transition. To normalize the image of a participant, the system zooms the camera to account for the distance of the participant from the camera. The blower is electrically driven and is controlled via a manual switch or timer switch that functions in conjunction with the drying cycles of the dryer. The first sensor may detect absence of the first media in the first input slot. The resonator can be a split ring resonator.