Hi
You seem to be having keratosis pilaris. This is a common skin condition where dark spots appear over the outer arms and upper back. The condition has no permanent cure however the marks can be significantly lightened using a combination of glycolic creams and retinoids creams. Please contact a dermatologist who can examine you and prescribe the appropriate skin care. Treatments such as microdermabrasion and chemical peels help as well.
Answered2015-12-13 15:59:20
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