Should I be doing more for this burn? How much time will heal? Weeks? Months? Just had LHR to my abdomen.

This was my first treatment of LHR on my abdomen. I've had LHR on my armpits twice with no issues. I got my abdomen done yesterday and I'm freaking out with these burns. I'm just so scared right now and I've been in frequent contact with the place I had this done and they are apologetic and advise to drink lots of water, stay out of the sun, put neosporin on it. They said they aren't sure why this has happened