My 10-year-old old boxer has a patch of hair missing on his ear. It is a little bloody and growing. We live in North Carolina and there is no sign of fleas. Please help. Thanks.

The file could not be created.
 

Yes. When a wound begins to heal, it can become quite itchy resulting in dogs biting at the itch or irritation. If there are stitches (also called sutures) there, and they can reach them, they are likely to chew them out! That is the reason for the funny lampshade collars!