He has had it for 2-3 weeks now. At first it was just the red one and it was a little bloodier. I put hydrogen peroxide and neosporin on it thinking he just had an itch and itched it too hard. One week later there is a strange brown spot next to it and hair loss in the surrounding areas as shown in the photo. He is a floppy eared bunny 5 y/o. He is eating and pooping just fine and is still playful. I haven’t noticed any changes in his mood and it didn’t seem to harm him when I put the hydrogen peroxide on it which is alarming because the healing effect should cause a sharp pain right? Should I take him to the vet? Oh he is also the only rabbit in his cage and no other animals access him when he is running around.