English Español Deutsch Français 日本語

Fungal Rhinitis dog:Causes, Treatment, and Related Symptoms

Dog Medicine
Fungal rhinitis refers to infectious diseases in the nasal cavity caused by fungi. The main pathogens causing the disease are Cryptococcus and Aspergillus.

Causes of fungal rhinitis in dogs


Cryptococcus neoformans is a fungus that can infect dogs, most likely through the respiratory tract, and the central nervous system symptoms are most obvious in dogs. Pulmonary infections rarely show corresponding clinical symptoms, such as cough, dyspnea, and nasal discharge.

Aspergillus SPP.

Aspergillus fumigatus is a resident fungus in many animals. But it is a pathogen in some dogs. These organisms can form fungal patches (" fungal clusters ") that attack the nasal mucosa. In general, dogs are caused by some other nasal diseases, such as tumors, foreign bodies, trauma or immunodeficiency, which leads to reduced body resistance and secondary fungal infection. In healthy dogs, it is most likely due to excessive exposure to Aspergillus. Another fungus, Penicillium, can cause similar symptoms to Aspergillus. Aspergillus fumigatus is the most common fungal infection in the nasal cavity of dogs.

The main symptoms of fungal rhinitis in dogs

Fungal rhinitis occurs mainly in long-headed dogs from young dogs to middle age. Infected dogs are characterized by mucus or thick nasal discharge from one or both nostrils, occasionally with blood, characterized by absence of pigmentation or ulceration in the nasal cavity, and sometimes facial pain or facial curvature.

Diagnostic criteria for fungal rhinitis in dogs

Different possibilities were initially screened by examination of his medical history. Serological tests, AGAR gel double diffusion and ELISA were performed, and the diagnosis could be confirmed when the results were positive.

Treatment method of fungal rhinitis in dogs

Clotrimazole, most commonly used, acts directly on the site of infection. Rhinoscopy was performed one month after treatment to determine the therapeutic effect. If fungi are still present, secondary treatment is required. The use of antifungal agents should be accompanied by testing of liver function, as it may cause liver injury. Clotrimazole immersion should be used to treat dogs with nasal fungal infection. It can also be treated by oral imidazole or triazole compounds alone or combined with surgery, and strengthen the care of the sick dogs. Prognosis depends on how the fungus invades. Only the cavity is involved in the best prognosis; however, invasion of the frontal sinus and invasion of the ethmoid plate increase the negative factors. Owners need to be aware that no matter what treatment is applied, there is no guarantee of success with one treatment.