A stable antifungal composition for topical application on a nail comprising a diol component, an organic acid component, a volatile vehicle, an antifungal agent and a keratolytic agent the active compound and the keratolytic agent are soluble in the composition in the absence of said volatile vehicle, and wherein at least one in the group selected from the antifungal agent and the keratolytic agent is present in solid state in the composition in the presence of said volatile vehicle. Preferred ingredients include propylene glycol, lactic acid, ethyl acetate, urea and terbinafine or naftifine.