Foam formulation comprises an emulsion of an oil phase and an aqueous phase, where the emulsion comprises micro-silver and/or urea. An independent claim is also included for a kit comprising (a) a urea-containing aqueous solution, and (b) the foam formulation. ACTIVITY : Dermatological; Vulnerary; Antiulcer; Antiinflammatory; Virucide; Antimicrobial. Test details are described but no results given. MECHANISM OF ACTION : None given.