I am 39 years old and med-skinned. I had microdermabrasion and chemical peel done at same time. I had these treatments many times before to remove brown pigmentation on cheeks, between the brows, and above the lip. I was getting great results until this last treatment. My face swelled so much I was unrecognizable. Four weeks later I am horrified to find that almost my entire face now has brown pigmentation on it. I am afraid to go back to my doctor for more treatments now. I have remained out of sunlight for entire 4 weeks and did my aftercare skin regimen like always. Why did this happen? Did the doctor use too much of a strong peel? What can I do now?