has anyone used microdermabrasion for small spots?

Ive been puttin alot of different creams on one side of my face as i used to massage it daily but i discovered that this caused alot of small tiny spots on my face seem like the spots are underneath the skin and my skin feels very rough

I went to a few skin care clinics today and one of them reccommeneded microdermabrasion to help get rid off of small spots caused my overuse of creams on my face has anyone used microdermabrasion before if so is was there any side affects or disadvantges to this treatment.

Also another one recommended glycolic acid peel treatments to help get rid of the spots what do you think of this has anyone used this?

thanks