sore feet

Hello guys, My little boy has sore hocks. I noticed them two days ago, took him to the vet. The vet preacribed a spray with chlorhexidine and gave us a topical grease. The problem is, when I apply the grease, it mats his fur and when he hops around it gets, more or less dirty. I saw a lot of...

I recently noticed this on my rabbits heel. He is a male 6 year old Dutch Rabbit. His cage has a solid plastic bottom and he walks around on hardwood floors. The spot is pink/red with some yellow skin and feels really hard like a callus. Should I take him to the vet or can I somehow take care of...