Laryngitis

Laryngitis – an inflammation of the larynx – belongs to the complaints that dog owners do not easily overlook: the barking suddenly sounds rough, almost hoarse, and sometimes a dry cough follows that robs you of sleep yourself. In severe cases, it can even lead to shortness of breath.

Dogs of all ages are affected, and the course is anything but predictable. Some cases resolve on their own after a few days – others drag on for weeks and then require targeted treatment. Chronic courses usually arise when an underlying disease simmers in the background or the dog is permanently exposed to irritants.

What triggers laryngitis in dogs?

Viral respiratory infections are most commonly the underlying cause. The parainfluenza virus – well known to many as the trigger for kennel cough – specifically targets the mucous membranes of the upper respiratory tract. On top of this, bacterial secondary infections often join in: Streptococcus and Bordetella bronchiseptica are the typical culprits that further exacerbate the course.

Environmental irritants also play a major role. Cigarette smoke irritates the sensitive laryngeal tissue even with low exposure – this is no small matter. Dusty walking paths, cleaning product fumes, or even perfume can trigger inflammation in sensitive dogs. And then there is excessive barking: it places purely mechanical strain on the vocal cords. Particularly bark-happy breeds or dogs in stimulating environments – such as an animal shelter or a bustling urban district – are well acquainted with this problem.

Allergic reactions to pollen, house dust mites, or certain feed ingredients can also manifest in the larynx. Less common, but certainly existing: mechanical injuries caused by strong pulling on the collar or improper intubation during anaesthesia.

How do I recognise laryngitis in my dog?

The most noticeable sign is hoarseness. The bark sounds rough, scratchy – or stops altogether. This is accompanied by a dry, barking cough that usually occurs in fits, worsens with excitement or exertion, and is often particularly distressing at night.

In cases of more severe laryngeal swelling, breathing difficulties develop. Whistling or gasping breathing sounds when inhaling are then clear warning signs – they indicate a narrowing of the upper airways. Difficulty swallowing manifests as frequent dry heaving or gagging when eating.

Many affected dogs rub their necks on furniture or scratch noticeably at the laryngeal area – an often overlooked detail. Loss of appetite arises because swallowing simply hurts. Fever only occurs with infectious causes and rarely exceeds 39.5 degrees Celsius.

How does the vet diagnose laryngitis?

The clinical examination begins with the vet palpating the neck. Swollen lymph nodes or a painful reaction to pressure on the larynx strengthen the suspicion. Characteristic breathing sounds can be heard over the larynx when listening with a stethoscope.

Clarity is provided by laryngoscopy: a thin endoscope is inserted via the mouth, and the vet sees the reddened, swollen vocal cords directly. As this examination is uncomfortable for the dog, it usually takes place under short sedation. Foreign bodies, tumours, or particularly severe inflammation can be recognised immediately.

X-rays of the neck can reveal soft tissue swelling or foreign bodies that might have been missed during endoscopy. Throat swabs help to identify bacterial pathogens and assess their antibiotic resistance. Blood tests uncover systemic infections or allergic reactions.

Which treatment helps with laryngitis?

Above all else: voice rest. Barking training must pause, and exciting situations should be avoided as far as possible. In uncomplicated viral cases, the laryngitis heals within 7 to 10 days – provided the dog rests consistently.

Anti-inflammatory drugs such as carprofen or meloxicam reduce swelling and alleviate pain. The dosage is based on body weight and severity of symptoms. Antibiotics – usually amoxicillin-clavulanic acid – are only used if a bacterial infection has actually been proven, not on suspicion alone.

Inhalations with physiological saline solution moisten the irritated mucous membranes. A nebuliser works well, but even a simple trick helps: taking the dog into the steamy bathroom. This sounds trivial, but often shows remarkable effect. The vet only prescribes cough suppressants for distressing, unproductive irritant coughs – not routinely.

In cases of allergic causes, antihistamines can help; sometimes cortisone is used short-term. Foreign bodies must be removed endoscopically or surgically. Tumours require comprehensive oncological investigation.

Can I prevent laryngitis?

The most important step is a smoke-free environment – and this does not just mean cigarettes. Incense sticks, fireplace smoke, or aggressive cleaning products also burden the dog’s airways. On dusty city walks, a damp cloth over the muzzle should help – whether every dog goes along with that is another matter.

A well-fitting harness is preferable to a collar because it prevents mechanical irritation on the neck. Choke chains or prong collars are fundamentally problematic for sensitive larynges. Excessive barking can be reduced long-term through enrichment and training – shouting is not a solution and usually makes things worse.

Dogs with allergies benefit from regular grooming and an environment that is as allergen-free as possible. Air purifiers or vacuum cleaners with HEPA filters can noticeably reduce the burden indoors.