Two days ago I got a microdermabrasion treatment done, and these thin reddish lines have yet to fade away. They have gotten better, but it seems like they may be getting darker. I did exercise within the 24 hour period. I also started peeling a little today, but that happened after my last treatment. Last time I got this done at the same place, and the red stripes did not occur. It was performed by a different aesthetician, however, and it hurt a little while she was performing the treatment.