A touch sensing structure is provided. A cutter head outside the housing at the bottom wall carries a blade juxtaposed with the bottom wall. Substantially all of the surface area of one or more heater elements forming the heat source are insert molded in the mass in direct contact to the mass. A controller is electronically associated with the microelectrode array which is programmed to provide selective activation andor blocking of various muscles using the microelectrodes of the array. The invention also relates to methods for the treatment, prevention andor delay of progression of neuromuscular disorders, in particular amyotrophic lateral sclerosis by administering a therapeutically effective amount of the pharmaceutical composition of the invention. In this manner, the user can use the handle in the first orientation to allow the cleaning device to flex into hard to reach places and can use the same handle in the second orientation to apply differing levels of cleaning force.