Tanda....?????

I've got a 13 year old daughter who has not gone through puberty yet but is very close to it. She has keratosis polaris which is also known as chicken skin on her face and arms. Since getting older she has been developing pimples on her face, blackheads, a lot of bumps and occasionally an inflamed pimple. I have been thinking of using the Tanda blue light on her and wonder wether or not it will work.