Well, Lou's ear has thankfully cleared up in such a manner that the vet is absolutely not concerned that he has any chance at further infection or even worse, staff. That's the good news.
The bad news is the poor guy has Ehrlichia (tic transmitted disease, thankfully not lymes). Steak and rest for my man this weekend, he's luckily been very spry and hasn't had a loss of appetite so the vet thinks he's been asymptomatic to the point that its exposure as opposed to infection.
If I had a magic lamp right now, even moreso then any sort of monetary gain, I'd wish that the entire tick population gets freaking eradicated.