Despite what people say not all vets are b*****ds and have a pay up scheme and I'm sure if you explain the situation they will be willing to sort something out for you, I take it he can breath/drink/eat fine?
Put it out for him he may not want it, I assume the swelling is on the outside only?
my hears in my fecking mouth......he can breath fine he snores a bit when asleep, and is drinking water fine ive not fed him as i dont want to get any thing blocked up, maybe some dog meat and milk minced up?