Would microneedling work on a spot left by a laser from mole removal 6 weeks ago? (photo)

The short answer to a question such as this, i.e. can microneedling be successfully employed to diminish post treatment (or post-surgery, post-trauma, etc.) erythema (redness), is "Yes!", especially if combined with redness suppressing agents, such as brimonidine, oxymetazoline and tranexamic acid. I use it for this purpose all the time. The ideal time for treatment is usually about eight weeks following the treatment when the wound is sufficiently healed to withstand the treatment.  However, your question raises a couple of other important issues worth noting. If indeed a true mole (a nevoid lesion) was removed, then hopefully a small sample was sent for biopsy to confirm that the mole was entirely benign. You should check on this, since destructive procedures, like lasers, cautery, electrodesication, cryotherapy with liquid nitrogen should be performed, even for aesthetic reasons, on a true nevoid lesion only AFTER the biopsy sample has been removed.  

Hello and thank you for your question.  Microneedling is a great treatment to stimulate collagen and improve tone and texture of the skin.  For scarring  a series of treatments will be needed.  Typical number is anywhere from 3-5 treatments, depending on your response.  After your microneedling treatments you may need to follow up with  IPL laser treatments to reduce redness.  Typically 2-4 treatments are needed.  Make sure area is completely healed and talk to your surgeon regarding follow up care.  Good luck to you, hope this helps.