I have bit the bullet and had the vet out. She says it could be mud fever, but in any event there is probably an infection there so I have a course of antibiotics for her. Fingers crossed that will clear the problem up.
Thanks for all your replies
I have a new 5yr old TB horse that has had an abscess about 4 weeks ago. I poulticed it, but felt it took a long time to clear up. During this time and ever since both of her back legs have been swollen around the fetlock. When she is turned out 24/7 this goes down, although Im not sure if...