Provided, among other things, is a delivery module for a non-greasy, non-irritating selenium sulfide composition comprising: (A) an aerosol delivery device； (B) within the aerosol delivery device, the selenium sulfide composition comprising an effective amount of selenium sulfide that is 1% or more by weight of the composition, and a frothing agent, wherein the selenium sulfide composition has a viscosity low enough to support aerosol delivery and the selenium sulfide composition is effective to form a foam upon propellant-driven aerosol delivery； and (C) within the aerosol delivery device, a propellant.
