Swat Fly Ointment “Bandage-in-a-Jar” is the answer when bandages just aren’t practical. Easy to apply, it keeps dirt and disease-carrying flies off open wounds, sores and lacerations and helps prevent infection. Keeps wounds clean so they heal fast. Contains pyrethrins and piperonyl butoxide. For use on horses, ponies and dogs. 6 oz in Original (pink) or Clear formulas.