External parasites in horses: how to recognise, prevent and treat them?
Cécile de Produits-Veto
Pharmacy technician ·
Summer often brings external threats to horses. Indeed, external parasites such as flies, ticks, lice or horseflies affect their comfort, impact their health and can cause allergic reactions or infections. Fortunately, there are natural solutions to protect them effectively.
External parasites in horses: what you need to know
These parasites affect all categories of equines, particularly during warm periods. Here are the most common:
- Flies and midges: they can transmit certain diseases such as conjunctivitis. In addition, they cause itching, stress and irritation.
- Horseflies: their bites are particularly painful. They often trigger inflammatory reactions.
- Ticks: they attach to the skin to feed on blood and can transmit serious diseases such as piroplasmosis.
- Lice and chewing lice: common in winter, they cause intense itching and sometimes lead to hair loss.
- Harvest mites: their larvae parasitise the skin, particularly around the legs and chest. This causes significant irritation.

Natural’Vet: 100% natural protection for horses
Before looking at prevention and treatment methods, it is worth mentioning Natural’Vet – Huiles essentielles – Cheval – 946 ml – FEDVET. This natural product, based on citronella and essential oils, limits the discomfort caused by insects during summer.
Why choose Natural’Vet?
- Natural, alcohol-free formula: This care product contains no harsh substances. It is therefore suitable for horses, foals and ponies, including those with sensitive skin.
- Effective repellent action: Citronella is known for naturally repelling insects. It forms an olfactory barrier against flies, mosquitoes and other parasites.
- Coat care: In addition to protecting, Natural’Vet nourishes the horse’s coat. It regains its shine and softness.
- An environmentally friendly product: With no toxicological classification, it is safe for both animals and the environment.
Ideal for daily prevention or before an outing, Natural’Vet contributes to the horse’s well-being throughout the summer.

Prevention and treatment: how to protect your horse?
Daily preventive measures
- Groom regularly: This helps detect the presence of parasites quickly.
- Keep the environment clean: Cleaning stables, paddocks and shelters greatly limits the spread of pests.
- Apply a natural repellent: Products such as Natural’Vet provide an effective barrier against insects.
Treatment solutions
Do you have questions? (FAQ)
How can I tell if my horse has external parasites?
Frequent itching, hair loss, scabs or redness can be signs of this. It is therefore important to inspect your horse every day.
What natural product should I use against flies on horses?
Natural’Vet, made from citronella and essential oils, is a natural, effective and safe solution for repelling insects.
Are ticks dangerous for horses?
Yes. They can transmit diseases such as piroplasmosis. It is essential to remove them quickly and use a repellent as a preventive measure.
Can a natural repellent be used on a foal?
Yes, provided the product is suitable. This is the case with Natural’Vet, which contains neither alcohol nor irritating substances.
External parasites are a significant nuisance for horses, especially during the warmer months. By adopting a regular care routine, keeping the environment clean and using natural products such as Natural’Vet, you ensure the comfort and health of your animals.






















