Is it possible to break out / acne 2 months after plastic surgery?

I had buccal fat pad removal and chin Implant surgery on September 7 2018 . On December I started breaking out and getting acne mostly around my cheeks . And also my forehead. I never had acne problem . The dark spots of my pimples don’t seem to fade .the first pimple I had the dark spot I still can see it and it’s January . Is it because of the surgery I had ? Is my skin taking a while to heal ? I still feel a little swollen sometimes on my cheeks/ nothing major .