A nasal bacterial infection, to my knowledge, would be more an immunodeficiency than an autoimmune problem.
There is a homéopathic complex named OCULONAT that works well on
these chronic sinusitis. It stimulates the yealing of tissus, decreases the inflammation and the secretions, increases the defense against infection.
The dog should take oraly 3 granules 3 times a day for a good month or two.
This type of disease usually occurs after giving a vaccination or from chemical insectisides.
Paul Guindon DMV
Clinique veterinaire Salaberry
Medecine conventionnelle et holystique
1895 Salaberry, Montreal, QC