Will Microdermabrasion Be Effective on Keratosis Pilaris Scarring on the Upper Arm?

I developed KP after my first pregnancy (twin girls) and it worsened after my second pregnancy (a boy), it's worse on my upper right arm and has left embarassing dark spots/scars. I am embarrassed by this and looking for a procedure to eliminate the scars since there's no cure for KP!

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