What are the specific advantages of getting acne extracted at a dermatologist's office compared to squeezing it at home?

I spent every day sitting in front of the mirror forcefully squeezing pimples with my fingernails or cotton swabs, only to end up with dark scars and scabs. The sebum festered deep inside, causing the bumps to swell up even larger. I feel like I've completely ruined my skin barrier trying to handle it on my own, so I'm now planning to seek help from a hospital.

I am curious about the specific benefits and effects of receiving formal extraction and scaling at a clinic for acne treatment compared to carefully squeezing pimples at home.

Aside from using hygienic tools, I would like to know if, in principle, receiving anti-inflammatory injections helps hardened, inflamed acne areas subside quickly without leaving scars. My facial pigmentation is worsening because I keep touching my skin, so please let me know if hospital care is definitely beneficial for preventing acne scars.