Well, the treatment of psoriasis takes time. Because one doctor doesn't give you results doesn't mean you change the doctor(I'm saying this because you mentioned that you have visited multiple doctors). Be a little patient. There are many creams and oral medicines as well that help in treating but that doesn't mean all of them are prescribed at the same time. The doctor first sees what is suiting the patient and what is not and then decides if other creams Need to be added etc. So, do not get frustrated. There are solutions. But please understand that you need to visit a dermatologist and not just any doctor.