The emphasis on micro flash and pico flash seems to be a great promotional claim by the machine makers as it has been picked up by electrologists who seem to believe it has some bearing on our work. I’m waiting for Super flash or Ultra flash. Micro and Pico are prefixes that relate to size. Small flash or smaller flash mean nothing. Regardless of what you call it… treatment results depend on adequate heat delivered to the right location for an adequate amount of time. That takes TRAINING and EXPERIENCE. If either is lacking there will be poor results. Unfortunately, that is not all there is to it. If the patient is young or in the menopause her hormonal problems may just be starting. She can grow hair faster than you can remove it unless she comes in 3 times a week for 30 minutes each.