Dogs, ear infections...

You feed them the coconut oil or apply to the ears? Sound dumb but our lab constantly has trouble with her ears, and is now deaf.

I said earlier, I'm no Vet (mind you I have a BA.Sc. (Masters in Biology...) Ergo, slight idea of the "human" anatomy but you would be surprised how eerily familiar dog and man can be.... Getting back to your question and far from being or sounding dumb, it's a logical assumption either way.
Yet the proper way to apply it is to have a few drops applied on to the ear. In fact try to have the oil luke warm so it's not that uncomfortable for the dog, even if you need to warm it up on a burner/stove, let it sit cool down and take a dropper (eye, etc) and apply a few drops on each ear. If you have the time and patience you can also add some garlic cloves (same thing warm up in a pan etc) and use some guaze cotton swabs to apply it on.
The cod liver oil, you will need to have him swallow it about 1-2 tablespoons, this is for his coat.
All dogs behind their canines (them 2 BIG ole Teeth on each side) have an empty spot and if you just raise his lip, you can wriggle in the spoon and let it spill in, he will not be able to "spit" it, once in.
Like I said, no such thing as, dumb questions...(sometimes, dumb answers) but never questions.
Best of luck.

I'm 56 yrs old, I've been playing with these dogs from the time I was 13 (Folks did not even know what a Pit Bull was back then) A good 30 yrs I have been breeding the same bloodline and have made my mistakes but one thing I pride myself with is when I got my first bulldog, I was told this was not a breed for everyone and that's why it should NOT be sold to just anyone. In the decades I've played with them, I believe less than 5 have left my yard. I do not sell any, nor advocate "Joe Public" owning them. Simply, people live vicariously thru their dogs.
These dogs had and have a certain reputation and many a coward has had them for these wrong reasons.
Anyways, I'm drifting from subject, personally I feel we are responsible for the pets and children we bring into this world and this is one reason I never sold any, as I had no idea what would become of him..... Just like when your boy takes a wife.... lol He is now gone.
Best of luck and if you need any help feel free to pm me and I'll try my best to give you sound advice to the best of my ability.
MAPS