the simple answer is no it's just not that simple. if you use a hot towel you don't have a control temperature for a certain amount of time and so you can either burn your skin or not get the desired effect. the zeno uses a specific temperature held to the spot for about two minutes to kill the bacteria that's causing acne and because they have testing behind it and it's a controlled environment they know the results and can have reliable results. with both of these devices it's really better if you really only get a few pimples a month and if you get them very early. once the pimple is already established neither of them do enough to make it go away fast enough for most people. the blue light is very specifically absorbed by the type of bacteria that causes acne and can be very effective but it's not the same as a blue flashlight or penlight. these are specific wavelengths at specific energy levels that will target those bacteria in very focused ways.
can't i just use a hot towel and a blue led flashlight?