How Can I Fix Hyperpigmentation from a Botched Microdermabrasion?

Hyperpigmentation cannot occur within just one day. I suggest you call the office you received the microdermabrasion and see if anything was different this time, rather than the other three times. If different solutions or topicals were used this time, pre, during, or post treatment, you may be having a reaction to those.  In the meantime, apply sunscreen and even 1% hydrocortisone, available OTC, to the irritated areas after cool water, and that should calm down any redness you have currently. Call the office before you worry anymore.

It is much too soon for this to likely be hyperpigmentation from the dermabrasion treatment. Be extra careful to stay out of the sun and apply your sunscreen daily for the next few weeks. If the discoloration persists, one of the most effective ways to reverse hyperpigmentation is by using a combination of two prescription strength medications: 4% hydroquinone and tretinoin cream. Prescription strength 4% hydroquinone is better than any OTC product for lightening dark spots in the skin. Combining prescription-only tretinoin cream with hydroquinone will make it even more effective. I recommend the Obagi Nu-Derm System which uses both tretinoin cream and hydroquinone to visibly lighten age spots as well as the fine lines and wrinkles that are due to chronic sun exposure. The photos below show nice results achieved by a patient in our practice after only two months of treatment.