How Can A Large Bump On The Forehead Be Treated After An Injury During A Baseball Game?

Hello! I was playing baseball one day and got hit in the forehead really hard to the point where I almost passed out but didn’t. I then had a bump so big it looked like someone cut open my head and put the ball in there and stitched it up! After a few months it basically went away it’s been a year now and it’s like a small bump reappeares right where I was hit. Is it normal to still have a goose egg after a year of being hit?