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02/02/2025
💦 Mud Fever thrives in this wet and cold environment 🥶 so here’s a reminder about the condition and how to try to avoid it for your horse or pony.
The cause of mud fever is the bacteria Dermatophilus Congolensis and often mixtures of different bacterial species including Staphylococcal or Streptococcal strains. They get into the horse’s legs when the skin is softened due to being wet and then compromised by the rubbing of soil and grit on the cold, wet skin. When the skin is continually wet and chilled, the protective barrier of the skin breaks down allowing the bacteria to enter and cause infection.
Although it may feel counter-intuitive to leave the mud there – we suggest you AVOID HOSING YOUR HORSES LEGS DOWN WHEN THEY COME IN! If you feel you must use a hose, make sure to GENTLY dry the horse’s legs with a soft, clean, dry towel afterwards to make sure they warm up quickly. Excessive leg washing will weaken the skin and remove the natural grease that acts as a barrier resulting in cracks which can allow the entry of bacteria.
Our advice instead is when you bring your horse in, leave the mud where it is and put on indoor padded wraps to get the legs warm and dry. It is generally better to allow the mud to dry and then brush off with a soft bristled brush in the morning.
In order to help protect the skin from moisture, specialised barrier creams work by forming a protective layer between the leg and mud. Pig oil, or a good quality nappy rash cream, like Sudocrem, can work just as well and many owners swear by them. We also have our own Mud Fever cream we can offer.
Certain soils and pastures appear to be more likely to cause skin damage than others. Lots of work in certain sandy arenas and schools can be quite traumatic to the skin. To help, clipping the lower legs of the horse does mean that they dry more quickly, but there is some debate as to whether highly-feathered horses are less or more likely to suffer from mud fever. But we do know clipping heavily feathered horses has several benefits including allowing easier visuals of the affected area, allowing the hair and skin to dry faster.
If you have questions or need advice on mud fever in your horse, you can arrange to speak with a vet at Agnew Equine on 01782 510502.