Smith and Nephew Tincture Of Benzoin Pump Spray 4oz 407000 - Prep Spray 4 fl oz (118 ml) Tincture of benzoin. Forms a base for better adherence. Effective protection to the skin area surrounding the stoma. Hold the bottle 6 to 10 inches from the stoma and spray using a circular motion. Allow drying for one minute. The stoma area is now ready for application of any type of appliance. The tincture of Benzoin may be removed with soap and water. Flammable. Do not spray near flame or while smoking. Avoid spraying in the eyes. Do not spray on, or apply directly to, open wounds or mucus membranes. Keep out of reach of children. Use only as directed.