Suggest Treatment For Dark Spot On Face After Squeezing Pimple

Hello..

I am 25 yrs old lady. I had a big pimple on my cheek with pus inside .i didn't touched it and it started swelling bigger. And it goes till one week and one day i squeezed a little and little pus came out, after that day swelling reduced but the blackness mark circled on ny cheek. I used Sofradex skin cream but didn't find any effect. Please advice any remedy to diminish the blackness on the skin as it pops out and looks clearly on my skin.