If it were me, I would just let the ear air out naturally until the sore spot went away, or to the point where it was around 80-90% healed at least.this might sound dumb would a band-aid work?
Leaving the ear down for a few days won't hurt anything.
However, if you must, I'd do a touch of neosporin and a little non stick padding to cover the spot, then post.
The rubbing irritation that most likely caused the bleeding...can be avoided by leaving the ears unposted for at least a full 24 hours in between posting.
I'm sure someone will chime in stating this is wrong and incorrect, blah, blah...yet they will have no factual answer as to why. It's just unnecessary paranoia. Your doggy will thank you, mine did!