How Long Should I Wait to Have Laser Hair Removal over TT Scar and Do You Agree It's Necessary?

I had a tummy tuck 5.5 weeks ago and healed great until recently discovered several infected spots along bikini line incision due to ingrown hairs coming in at incic. Dr. put me on antibiotics and recommended laser hair removal along scar/incision to keep it from happening every time a new hair is coming in. They recommended fractional laser. How long do I need to wait to start this, to avoid being on antibiotics every time new hairs are coming in? I don't want to compromise my scar healing.