I have the same thing right now, My dermo has told me it is psoriosis but i think its pustular psoriosis on the hands and feet. Im going to start phototherapy I'll let you know how it goes.
But for right now tell her to use vaseline, hand creams (something like aveeno) or an steroid cream and put hot towels over skin leave them for 20min or so and do it again. Thats what they did to me at the day hospital it makes the medicine get into the blood stream faster...it helps but you have to do it for days at a time...using too much of the steroid ointment will make your skin thin so use as directed. Always keep the skin moisturized.
Just wanted to give you an update on my sister... she saw her GI on Thur and he took a bunch of pictures of her hands and feet... unfortunately, he told her that he had never seen anything like it and didn't know what it was... he told her that he would make her an emergency dermatology appt however, we/she hasn't heard anything yet despite calling his office several times to find out... he also stopped her remecaide treatments... in the meantime she is supposed to keep the infected areas covered (I guess he thinks that she lives in a bubble...).. and we'll keep our fingers crossed that she hears from someone soon!!... The good news is that she is in good spirits and keeping a positive attitude... I'll be keeping an eye on her and I'll keep you posted...
Black Jack Support!!