The horse's shoes should be removed as a first step. Dry and moist corns are pared with a hoof knife to relieve pressure, suppurating corns are opened to drain and treated as for 'pus in the foot'. You have to be careful not to pare the sole excessively in thin soled horses or the condition may be worsened. A poultice, followed by dry protective bandaging, may help to speed recovery and the horse should be rested until recovered.
After rest and recuperation, the horse can be re-shod long and full at the heels. For chronic corns, the horse should be shod with wide-webbed egg-bar shoes to support the heels and encourage heel growth.