Can microdermabrasion get rid of sunken scars,like ice pick scars and boxcar scars? And will it help eliminate freckles?

Microdermabrasion is a great treatment to kick start skin that is in desperate need of exfoliation, as a routine maintenance treatment for healthy skin or a preparatory treatment for some laser treatments.  However, microdermabrasion is not an effective treatment for ridding of sunken scars, ice pick scars,  or box car scars. These scars are most effectively treated utilizing acne scar subcision,  fractional laser resurfacing(non-ablative or ablative) or a combination of the two. Be mindful that when opting for non-ablative resurfacing, a series of 3-6 treatments are best for yielding optimal results. Laser treatments that target pigmentation coupled with a home care lightening regimen will be most effective in addressing the freckles. As always, be diligent with your sunscreen!

Microdermabrasion is a relatively light, noninvasive procedure to exfoliate the outermost layers of the skin.  While its a great treatment, and at our practice, we often combine it with a variety of topical treatments to improve skin texture and pigmentation.  That said, the type scarring that your describe (ice-pick and boxcar scarring) will not show significant improvement with microdermabrasion.  Depending on your skin type and the extent of your scarring, there are a variety of other options available, including laser skin resurfacing, subcision, punch grafting, and injection of fillers.  Freckling would probably best be treated with an IPL or laser treatment, or a chemical peel, again depending on your skin type. 

You may see some mild improvement with your scarring and freckles, although IPL or BBL photo rejuvenation for the freckles, and laser resurfacing with an ablative fractionated laser such as a Profractional for the scarring would be far more effective (since deeper).