Q. My Poodle has pus filled lymph nodes vet doesn,t know why-treatment with antbiotics-could an insect bite cause this-which one-dog is extremely ill-

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A. Sounds like if the lymph nodes are affected there is a severe infection and it could also be a lymphoma and you may need to see a different vet if this one doesn't know what is going on. Are you sure it is pus and not lymph fluid? A fine needle aspirate would be the best thing to do to see what the fluids looks like under the microscope. I would see a specialist.

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