The present invention provides a composition, substantially a lotion, containing a source of nitrite ions and water. The composition, substantially a lotion, is preferably provided in two distinct and separate formulations. One of these formulations may or may not contain a source of nitrite ions. The composition is easily washed off with soap and water and is useful in preventing or treating bacterial, viral, parasitic or fungal infections. Further, the invention provides methods for preventing or treating bacterial, viral, parasitic or fungal infections by applying a pharmaceutically effective amount of the composition topically to the skin. Still further, the invention provides a kit comprising the composition of according to the invention together with instructions for applying the composition topically.