Hi there, my name is XXXXX XXXXX I am a registered veterinarian and I would like to try to help you.
I am sorry to hear your dog has a bad ear infection, they are often really painful. Has your vet tested the ears at all?
I will wait online and hopefully we can chat soon.
Well the lumps you describe could well be reactive lymph nodes. Lymph nodes are glands where the body deals with infection and usually once the infection is resolved the lumps will return in normal. There are some circumstances where this is not true, like infections with cancer.
Ear infections do not always respond to first line treatment and in cases where we suspect the bacteria may be resistant it is really important to get a sample of the discharge of ear. This can be examined under the microscope to determine what kind of infection we are treating as often hard to treat infections can be mixed infections with yeast, bacteria or fungus.
It also means the bacteria can be grown in the laboratory and cultured to test it against different antibiotics and determine the most effective treatment. Ear infections are rarely a cause for euthanasia. In very severe infections your pet may need an ear flush (like syringing the ears) to remove some of the debris in the ear canal and in very rare cases the ear canal can be surgically removed to treat persistent or recurring infections.
I'm sorry I was not online earlier. I have a sick dog at the moment. I hope that this information will help you to get an overall picture of how ear infections are usually treated and allow you to discuss a good treatment plan with your veterinarian.
If you want any more information at all please do not hesitate to reply (it's free to follow up!) and I am always happy to help.
I wish you all the best with Louis