Table 1: Corticosteroid classification system, adapted from [12].

Class Name Vehicle Oinmtent Cream Lotion Superpotent    Class I USA; class I UK; class IV Germany Betamethasone dipropionate glycol 0.05%       Clobetasol 17-propionate 0.05%       Halobetasol propionate 0.05%       High potency    Class II/III USA; class II UK; class III Germany Amcinonide 0.1%       Betamethasone dipropionate 0.05%       Desoximetasone 0.25%       Diflucortolone valerate 0.1%       Fluocinonide 0.05%       Halcinonide 0.1%       Mometasone furoate 0.1%       Triamcinolone acetonide 0.5%       Moderate potency    Class IV/V USA; class III UK; class II Germany Betamethasone dipropionate 0.05%       Betamethasone valerate 0.1%       Clobetasone 17-butyrate 0.05%       Desonide 0.05%       Desoximetasone 0.05%       Fluocinonide 0.025%       Hydrocortisone 17-valerate 0.2%       Prednicarbate 0.1%       Triamcinolone acetonide 0.1%       Low potency    Class VI/VII USA; class IV UK; class I Germany Betamethasone valerate 0.05%       Desonide 0.05%       Fluocinonide 0.01%       Hydrocortisone 1.0%, 2.5%       Hydrocortisone acetate 0.5%, 1.0%       Prednicarbate 0.05%       Triamcinolone acetonide 0.025%