How successful or helpful are dermatologists?

I personally loved seeing a dermatologist for my acne. Yes a doctor has to give you a referral to go see one but that's fairly simple if you just tell them you want an acne solution cause you hate the stupid buggers. I went and they were super nice. They look at your skin closely and never say ANYTHING mean to you or make u feel uncomfortable. They ask you about your diet, how much you exercise, etc. then they prescribe you some stuff and you're good to go! My acne has gone from moderately-severe to mild almost. I just have scars and even those are fading with time and some medication/home remedies. hope this helps!