recently we have just had our pigs back from slaughter, one of them had a bad swollen ear.
after asking questions on ere and looking online i found out it is called caliuflower ear (after the rugby players ears)
it happens after a play fight or fighting for food when they bite.
some say drain the fluid with a syrainge others say leave it be cos if you stick a syringe in the opening might allow bad bacteria in causing
worse infection.
i took the latter advice and left it alone.
the pig was fine and by the time the day came for them to go the swellen had gone down.
hope i hadnt bored you and hope this might help
langdon