I'm wanting to try Fraxel Dual Laser on my acne scars, hoping to improve their appearance. I have some on my cheeks & around my mouth area, indent and ice pick ones along with hyper-pigmentation. Why do I keep reading people state the results are only temporary and the skin tends to go back to how it once was? I thought it zaps down a few layers, I'm not wanting to try it if the scarring will re appear in the future. I do understand the scars will not ever be completely gone with lasers-