Why is my dog reverse sneezing?

Why is my dog reverse sneezing?

(Q) l have a six-year-old Pug who has never really struggled with his breathing until now. l had to take him to the vet's as he had quite a bad reverse sneezing episode and soon after was struggling to breathe with green discharge coming out of his nose. The vet gave him antibiotics and said it was inflammation that had caused it. After a couple of days on the medication it cleared up and he seemed back to normal.

A few days later he started to sound blocked again, mainly at night; his eating and drinking were normal and he acted like his normal self.

In case allergies are the cause l changed his diet to hypo-allergenic food and changed my washing powder but he still sounds the same. Is there anything else I can try?

(A) Vet Roberta Baxter says: Reverse sneezing is commonly experienced by normal dogs, and is often of no consequence. However it can be more common in dogs with inflammation, infection, a foreign body such as a grass seed in the nasal passages or throat area, or even a polyp or mass in this location. A greenish nasal discharge more commonly indicates infection or a foreign body, and can be the consequence of bacteria, viruses, or even a fungal nasal infection.

An allergy would be an uncommon reason for such symptoms. Your Pug may need another course of antibiotics or may need further investigation of this problem. Culture of a nasal swab might allow identification of any infectious agents that are present, and an x-ray or endoscopy might be needed to check out the nasal passages.