Something in my dog's ear!  

Are you suer it's an obstruction? Mahbe it's something as easy as ear mites.

One thing you might try is this....

take a few drops of baby oil and drip it down in your dog's ear. Before he shakes his head, rub the ear by the skull together to work the oil way down. Jump back quick when you let him go or you'll end up wearing oil. After a few hours, carefully take a q-tip and clean the ear. Especially if you see any 'dirt'.

Our cats do the same thing alot. I do the oil treatment and clean and they're fine. The oil smothers the mites and helps 'wash' them to the outside of the ear.

Hope this helps! :)

You have been given good advice here already & exactly the things I was going to say! In addition to putting a small amount of baby oil in your dog's ear, if it is a large dog, I find it better to wipe the ear out with a cotton ball. I do this with my german shepherd & it works great. I have an ear wash solution that I bought from our vet.

And smelling the ear is another good thing to do. If there is a foul odor coming from the dog's ear, there is an infection & it will need to go to the vet for medicine.

Please keep us informed on how your dog is doing!