Help with fixing grain artifacts

[Garfield9]

Hi, I would like to know if there is a way to fix grain artifacts left from heavy dnr and sharpening in anime video. I attached two screenshots that show the problem, its those grain streakes appearing on the edges. I am just not sure if there is a function that can either smooth that out or fix it in some other way. Also I heard about something called contrast equalizer that can help with this but I am not sure what it is.