✓ Registered Vet Practice
🚚 Fast UK-Wide Delivery, Including Northern Ireland
℞ Prescription & Non-Prescription Products
→ Need to upload a prescription?
Why Is My Horse Coughing?
Common causes, and when a cough needs a vet
Quick Answer
- An occasional clearing cough at the start of exercise can be normal in some horses
- A persistent, frequent, or worsening cough is usually linked to a respiratory or airway issue
- Dust and mould exposure are among the most common triggers
- Breathing difficulty alongside a cough needs urgent veterinary attention
Common Causes of Coughing
01 Dust and mould exposure Most common
Dusty hay, bedding, or a poorly ventilated stable can be linked to airway irritation and a recurring cough, particularly when a horse is stabled for long periods.
02 Equine asthma
An inflammatory airway condition, often linked to environmental triggers like dust and mould, can cause a chronic cough that may worsen with exercise or dusty conditions.
03 Viral respiratory infection
A cough alongside nasal discharge, a raised temperature, or lethargy can be linked to a viral infection, which often spreads quickly between horses in close contact.
04 Exercise-induced clearing
A single, mild cough at the start of work, which then settles, can be a normal airway-clearing response in some otherwise healthy horses.
Occasional vs Persistent Cough
Occasional
A single cough or two at the start of exercise, with no nasal discharge, fever, or change in behaviour, that then settles.
Persistent
Repeated coughing over days or weeks, especially alongside nasal discharge, reduced performance, or a change in breathing at rest.
Contact Your Vet Immediately
- Laboured or noticeably increased breathing effort at rest
- Flared nostrils or visible effort to breathe while standing still
- A cough alongside a high temperature, severe lethargy, or collapse
- Thick, discoloured nasal discharge alongside the cough
Breathing difficulty in a horse should always be treated as urgent.
When to Contact Your Vet
- A cough lasting more than a week or two
- Coughing that’s increasing in frequency or severity
- Reduced performance or stamina alongside coughing
- Any nasal discharge, even if mild
- A cough in a horse that’s recently moved yards or had contact with new horses
How Pet Med Direct Can Help
Once your vet has identified the cause, ongoing management may include dust-reducing bedding and forage options, alongside any treatment prescribed for your horse’s specific condition.
Some treatments require a valid veterinary prescription. Pet Med Direct can only supply prescription medicines after the prescription has been checked. Always follow your vet’s advice and the directions on the medicine label.
Frequently Asked Questions
Is it normal for a horse to cough once at the start of work?
A single mild cough that clears quickly, with no other signs, can be normal for some horses. Repeated or worsening coughing is what warrants a closer look.
Can bedding type affect coughing?
Yes, dusty bedding can be linked to airway irritation. Lower-dust bedding options and good stable ventilation can help reduce triggers.
Can a cough be linked to allergies?
Yes, environmental allergens such as dust, mould spores, and pollen can all be linked to airway irritation and coughing in sensitive horses.
Should I stop riding if my horse has a cough?
It’s sensible to ease off exercise and contact your vet if coughing is new, persistent, or accompanied by other signs, rather than continuing as normal.
Need pet products or prescription medicines? Visit the Pet Med Direct shop.
This this article is for informational purposes only and does not constitute veterinary advice.
If you are concerned with your dog’s health, please consult a qualified veterinarian.