Hello,
That looks like it might be bothering him. Do you know how that happened or was it like that
when you got him? It looks like an injury but there is no telling what could have happened.
Do you have any raw, unpasteurized honey, or antibiotic ointment that you could put on that
until you get him to a vet? If you need to clean the area, you can use a diluted betadine but
avoid the use of hydrogen peroxide though.
How is his appetite right now?
Let us know how he is doing.
Tracie