I had laser hair removal over 1 year ago. I got burned last time. Do the scars remain permanently? Avene or Biafin? (Photos)

I used to go to laser over 1 year.I got burned 5days ago.I attached a pic of leg on 1st day and its pic and also belly on 5th day.1st two days I used Vitamin E and Polysporin Antibiotic Creams.On 3th day I started using only Avene Repair Cream 2X a day(doctor's prescription)and taking shower once a day(using unscented Dove soap).I ordered a Biafin Emulsione online.Is Biafin better to remove scars than Avene?Should I take shower every day?Do scars remain permanently(under arm,full bikini,..)?