Clean the foot up better. Give the foot a good soak in diluted betadine, chlorhexdine or warm soapy water (like dial soap) and gently scrub with a soft brush to remove the blood, poop and debris from the foot, then apply Vetericyn or triple antibiotic ointmnet. A small cut/scrape become infected quickly on a foot (technically any infection on the foot would be called Bumblefoot) - consider wrapping the foot to keep dirt/debris out of it and keeping her on clean dry bedding would be ideal for a couple of days. Look at the foot at least once a day and monitor it for any redness, heat, swelling, odors or pus/oozing. A wire dog kennel in the run with clean shavings works well to limit a bird's activity while they heal.