04/06/2026
Mud fever is something we have been seeing a lot more of this season, and it is not just a “mud problem.” 🌧️🌦️
Mud fever occurs when the skin barrier is compromised, allowing bacteria that naturally live in the soil to invade.
Horses with pink 🦩skin are particularly vulnerable, as they have fewer natural defences against both moisture and UV damage. While wet, muddy conditions are a common trigger, prolonged dampness or even excessive sunlight can weaken the skin enough for infection to take hold.
Once the skin is damaged, bacteria enter and form the characteristic scabs. These scabs are not just a symptom — they actually act as protective shelters for the bacteria underneath, making treatment much more difficult. In some cases, secondary bacteria can also invade, creating more complex and stubborn infections. 🦠
If left untreated or if infection spreads, mud fever can progress to cellulitis. Cellulitis is a deeper infection of the tissues under the skin, leading to significant swelling, heat, pain, and often lameness. These cases can become serious quickly and may require systemic treatment. 💉
Effective treatment involves removing the scabs so topical medications can reach the affected skin. This can be painful, and some horses may require sedation. Softening the scabs first with an oil or emollient can make removal gentler and more effective. It is important to dispose of the scabs after removal, as they contain bacteria that can recontaminate the environment. 🗑️
Washing with a medicated shampoo can help, but this should be done no more than twice weekly, as over-washing can dry out the skin and further weaken its protective barrier. Applying a barrier cream is important to protect healing skin, and in more severe cases, prescription treatments such as Imflamol may be needed. 💊
We are also seeing an increasing number of refractory cases. Recently, we have been culturing scabs and tailoring treatments based on the specific bacteria involved. This approach allows for more targeted therapy and supports better antibiotic stewardship, improving outcomes while reducing unnecessary antibiotic use. 🐴🐴
If you are dealing with persistent or worsening mud fever, it is worth reassessing the approach early, we are always happy to help!
