How Long Does It Take For Clobetasol To Work For Poison Ivy?

How Long Does It Take For Clobetasol To Work For Poison Ivy? It takes about one to three days for clobetasol propionate to start working when it is being used to treat eczema. Some improvement in symptoms such as inflammation (redness) and itching, should be noticed within this time. Will clobetasol work on poison ivy?