Go to the Vet (leaving puppy home), and ask for a product called: Foaming Ear Cleaner, and the corresponding rinse/cleaner. It's made by Animal Dermatology Labs. Ask your Vet on instructions as to how to use it for cleanning the ears. Also ask the Vet for a salve- Ottomax. A few drops are placed in each ear after cleanning, initially 2X daily. This will usually clear up the infection within a week.

If your Vet doesn't want to cooperate, then find another Vet immediately, as an inner ear infection can cause more problems. Once the ear has a serious infection it seems as though it will be prone to future infections very easily. So this will probably be an on-going problem for you periodically from now on.