Stocking impregnated with an ointment containing 20 % zinc oxide. Sterile. Medicated dressing. Indications: Zinc oxide has a soothing and protective effect and has been shown to have a role in wound healing. ZIPZOC is used for the treatment of chronic leg ulcers. Where the cause is due to chronic venous insufficiency (poor circulation in the veins), ZIPZOC can be used under compression bandaging. For use by health professionals or consumers under the direction of a doctor.