I had blue light therapy about four years ago and the actual treatment was not painful at all but the aftermath was horrible. My face and chest burned like acid had been poured all over it for days and days. I kept calling my dermatologist and asking what could be done and then the itching started and that was horrid also. Now I have a new dermatologist and she is suggesting red light therapy and says she will do it for 1/2 the amount of time and see how it works and if I can tolerate it we can do it again in six months. I have been putting it off now for the past five months just not wanting to inflict more pain on myself. I know I need to do it again but I just can't bring myself to make the appointment.