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My dog has a cough, was diagnosed with bacterial upper respiratory infection, and is now coughing worse — what should I do?
Upper respiratory infection is caused by bacterial or viral invasion of the airways and is risky for weak, low-immunity dogs. If injections and oral medicine are not working, ask the vet about nebulized antibiotics or IV anti-inflammatories. Keep the dog warm at night, and for unvaccinated puppies recheck for kennel cough, distemper, and parainfluenza as cough worsens.

Cat Upper Respiratory Infection: Symptoms and Treatment
A cat upper respiratory infection is inflammation of the mucous membranes of the upper airways. Affected cats typically cough, sneeze, and have a runny nose, sometimes with yellow nasal discharge, and a sudden drop in temperature, poor nutrition, or stress can trigger an outbreak. The usual culprits are viruses such as herpesvirus and calicivirus, bacteria such as Chlamydia, and fungi such as Cryptococcus. This article covers the common pathogens, how viral, bacterial, and fungal infections differ in their signs, what else can mimic these symptoms, and the supportive care and medications veterinarians rely on to treat them, from keeping the eyes and nose clear to antiviral, antibiotic, and antifungal therapy.

Colds in Dogs and Cats (Upper Respiratory Infection): Symptoms, Treatment, and Prevention
A 'cold' in dogs and cats is an acute illness of the upper respiratory tract marked by nasal discharge, rapid breathing, and fever. It is often highly contagious and viral in origin, and is managed with supportive care and, when needed, antibiotics for secondary infection.
My dog has yellow pasty nasal discharge and kennel cough, diagnosed with upper respiratory infection and bronchitis — what medication should I give?
Upper respiratory infections in dogs are treated with medication and nebulization. Pet-specific broad-spectrum antibiotics and cough or phlegm-reducing medicines address the coughing and discharge, while nebulization helps in severe cases. Give medication only under veterinary guidance and adjust the plan as symptoms change.

Symptoms of Upper Respiratory Infection in Cats
Feline upper respiratory infection (URI) hits the nose and throat and shows as fever, sneezing, watery eyes, runny nose, red eyes, cough, hoarse voice, poor appetite, and sleepiness. Most cases are viral (herpes or calicivirus) and need antibiotics plus vet care; vaccination is the best prevention, especially for kittens.

How to Prevent Middle- and Inner-Ear Infection in Cats
Cat middle- and inner-ear infections usually start with an untreated respiratory infection or trapped moisture, so prevention means prompt care of sniffles, dry ears, gentle cleaning, and a clean, low-density home. Quarantine any new cat before it meets the resident crew.

What to Do When a Cat’s Cold Leads to a Respiratory Infection
A winter cold can escalate into a serious upper respiratory infection, especially in kittens — one case took a month to recover and needed force-feeding because a blocked nose killed the appetite. Keep the cat warm but ventilated, boost immunity with nutritional paste and probiotics, skip baths, and complete the three-shot vaccine course starting at two months.

What Is Feline Mycoplasma Infection?
Feline mycoplasma is a mixed bacterial infection; infected cats sneeze, cough, have more eye/nose discharge, conjunctivitis, and breathing difficulty. Treat promptly to avoid worsening.

How to Treat Canine Coronavirus Infection
Canine coronavirus infection, also called canine coronavirus diarrhea, is an acute infectious disease caused by canine coronavirus, mainly characterized by vomiting, diarrhea and dehydration in dogs.

Canine Herpesvirus Infection
Canine herpesvirus infection is an acute, fatal infectious disease of newborn puppies caused by canine herpesvirus. Dogs over 2 weeks old show tracheitis, bronchitis and other respiratory signs; bitches can have infertility, abortion and stillbirths; males show balanoposthitis and funiculitis. The virus is widespread in breeding kennels.