Age 41, female, Liquid nitrogen for sun spot on cheek gone wrong (Photos)

I am a 41 year old female who went to a local dermatologist to have a sun spot looked at on my left cheek. The dermatologist suggested liquid nitrogen to burn it off. It looks worse now than it did before. On top of that, the second visit he decided to burn 2 other spots on my face that I never even noticed and are now large, dark and ‘concaved’ scars. I am at a loss at this point, and beyond frustrated. Help!!