R.D.
My husband gets it REALLY bad. It gets worse in the cooler months because sunshine helps break down the cells that rise to the surface :)
My husband has even gone to the tanning bed a few times this past winter when it got really bad. It makes SUCH a huge difference!
His dermatologist had him using that stuff you're using, then switched him to ... wait, this might be the old stuff, does yours say clobetasol propionate on the actual tube? I do know there was one other cream he tried and it worked. It's important to give yourself a break every few weeks (go a week without anything, or just using eucerin, OTC), so your body doesn't build up a tolerance for the medicine.
My hubby's next step is the shot, man I'm having a serious brain fart and can't think of what it's called, it's the purple one always advertised on t.v. for serious plaque psoriasis. He's nervous about it, but I think that's going to be his best bet.
Hope you find relief :)