Laser Hair Removal Side Effects

I wanted to do my eyebrows for laser hair removal, but uh, I heard that after some years it can leave white spots on the places they have to, like scars. Now I know that laser hair removal is out there about 10 years or more, but do you think willimprovee sideeffectss like that in a few years? So my sister did and she said it was horrible pain and shes tuff, but she got her armpits, tender area a bit = / Is it true that his painful?

It is a lil bit of scarring, but it will disappear after about a week!