Horse Health Icetight Poultice is a topical poultice for use on horse's knees, tendons and ankles. Cold therapy (or cryotherapy) poultice for horses is one of the most effective techniques in helping to relieve stiffness and soreness of hardworking horses. It is generally among the best poultices for horses' legs for fresh trauma and preventive therapy (due to regular wear-and-tear) after a strenuous workout. A cold therapy poultice wrap for horse legs restricts blood flow to the area, helping to reduce swelling and tighten the soft tissues. For this reason, cold poultices are commonly used by performance horse owners as a part of their daily routines.