Cellulitis or phlegmon is caused by small wounds in which bacteria settle. Especially these small wounds close again quickly and if bacteria have penetrated, this is an optimal breeding ground. Bacteria multiply even more quickly in the absence of air. In most cases, an extensive and often purulent inflammation then develops.
You can recognize a cellulitis by a strong and warm swelling, which is often located on the legs. Sometimes you can still see the traces of a wound. The horse is usually lame, lethargic and has a fever.
First, you should contact the veterinarian and take a fever. Also, help your horse by cooling the area.