Thank you for your question!
I’m sorry to hear that your girl has been suffering with this condition for so long. It sounds like your vet has done some extensive tests to try to identify the cause and the best treatment to help her.
Lymphocytic plasmacytic rhinitis is an immune mediated condition of the upper airway that is characterised by reverse sneezing and nasal discharge and is often linked to underlying allergies such as to pollens or other inhaled irritants.
Biopsies are usually taken during the scope procedures which are used to aid diagnosis and help rule out other conditions such as fungal disease. Because it is related to an overactive immune system treatment requires immunosuppressive medication and sometimes antibiotics to treat the secondary nasal infections all of which is sounds like you have tried.
It can be an incredibly frustrating condition to manage and is often a matter of trying different treatments to find out what gives the most relief of symptoms for your pup.
- Dr. Alex Hynes