Solution contains 0.2% w/w nitrofurazone in a water-soluble base, proven effective by FDA, National Research Council and National Academy of Sciences to help prevent infection caused by surface bacteria from wounds, skin lesions, burns and post-surgery. Apply directly on the lesion with a spatula or first place on a piece of gauze. Use of a bandage is optional. 
The preparation should remain on the lesion for at least 24 hours. The dressing may be changed several times daily or left on the lesion for a longer period