Clip affected parts and burn clippings. Apply tincture of iodine, if available, paraffin or soft soap to spots. Disinfect harness etc. Marked skin irritation. Horse bites and rubs himself against any available object.
Hair comes off in patches and skin becomes thickened and corrugated.
Prevention of spread . Obtain veterinarian aid without delay. Isolate affected and suspicious cases with their equipment. Men looking after them should not go among healthy animals, as they may carry infection in their clothing. Picket in open.