My legs are burnt after laser hair removal. Will it be permanent? (Photo)

These are not burns but petechial hemorrhages.  These resolved easily without any problem.  Make sure to protect the legs from sun exposure and apply A lot of moisturizer.RegardsDr. J

The redness the you notice is not scar.  However, over a period of weeks or months it will be more clear if there are any permanent scars. In the meantime avoid further laser treatment , and avoid sun exposure.

It does not appear to be a burn but PFE (perifollicular edema) which is common after hair removal. The small bumps is just a reaction of the hair follicles and should resolve on its own in a few days. You can apply aloe vera to help soothe and moisturize the area.