Brown when I wipe?

Hey girls! So I just finished my period yet I still seem to see brown when I wipe..? Before my period I was feeling very itchy and still do. And usually before my period, I would usually get brown which I know is blood. But I never got it after my period. I’m still a little itchy and don’t know what it could be and what to do (especially during this time).

I know it can’t be an STD since I was clean the last time I got tested.