Hello, One Week Ago I Scraped The Back Of My

Hello, One week ago I scraped the back of my knee joint on bramble bushes. The cuts bled, but I cleaned them up. One week later, I am having redness and inflammation as well as soreness and pain. I have put an antibiotic ointment on the area and bandaged it up. Should I seek treatment from a doctor? Could this be an infection and something to be concerned about? Thank you.