Can you reopen scars that have been laser treated?

Dear Charming209937,
generally speaking, it is possible to open laser-treated scars. If you are considering surgery, I would suggest you consult a board-certified plastic surgeon. Only after a thorough examination, you will get more information and recommendations.
Daniel Barrett, MDCertified, American Board of Plastic SurgeryMember, American Society of Plastic SurgeryMember, American Society of Aesthetic Plastic Surgery

Your surgeon will probably cut out the old scars. Once healed, you can consider micro-needling or laser treatments if needed.

While you may re-enter through a previous scar or even a laser treated scar, sometimes it is beneficial to excise the scar and suture virgin skin.

Usually in a revision all of the old scars are cut out and new scars are made. We do free laser scar treatment on all of our surgical scars.