In sports horses with chronic suppurative synovitis and arthritis, the joint area is swollen, painful and hesitant. With a slight flexion of the injured joints of the legs of the animals, weakness, an increase in body temperature, an increase in the injured joint relative to the joint of the opposite leg are observed. In the treatment of purulent inflammation of the joints of the fingers, treatment with traditional methods lasted on average 20-25 days, while in the group using hydrocortisone, novocaine, chondrolone and Butasal-100, after the cessation of pus discharge, in addition to traditional methods, it was 15-18 days.