FOOT ABSCESS, also known as pus in the foot, is very commonly seen in horses, ponies and donkeys, especially at this time of year. Foot abscesses are generally very painful with a sudden onset. They result from a localised bacterial infection developing inside the hoof wall or under the sole, which typically develops after a penetrating injury through the sole, or by tracking up the white line (the seam between the sole and the hoof wall).
If you are treating a horse with an abscess, this short video may help, showing you how to apply the poultice.
Recurrent abscesses at the same location can reflect either the presence of a deep seated unresolved infection, a foot tumour called a keratoma, infection of the pedal bone within the foot or chronic laminititis.