Hen with cuts on leg, please help - our first real "bo-bo"

Penny is about 5.6-6 weeks old. She's a sweetie. We got her at TSC in the Black Wyandotte straight run batch, but she sure looks like a Barred Rock to us. Anyway, I went out to check on them just a few minutes ago and I noticed she was holding her right leg up and not really wanting to walk. She can walk and does to get water, peck/scratch the ground, and get to the feeder BUT she prefers not to, resting on the ground a lot. She has what looks to be a cut just above the ankle in the front of the leg. Also are a few other much smaller little cuts around this one. It is bloody, but not still bleeding. I was worried about the other hens noticing it and causing her grief so I brought her inside and put her in the kennel we used when they were little chicks.

Here's what common sense tells me to do, but I wanted to see what others said first before I do it all:
1. rinse it in warm water (actually already did this)
2. spray it with Epicare Poulty Aid
3. wrap it with flex wrap tape I have on hand
4. put her back out with the rest so she won't be alone and they know she is missing

I took a pick with my phone but this makes it look worse because it's not straight on