I have a skin problem (on my face) and I am required to put a very expensive cream on my face once a day and cannot wash it off. The cream has to be on my face all the time. When I wake up for fajr prayer I do wudu (then put the cream) and then I have to try and not go to the bathroom the whole day until after isha prayer so I don't break the wudu. It's very difficult because I eat and drink less and have to only pray with one wudu only. I don't know what to do or if what i'm doing is ok.
What should I do?