Hello Ved Prakash, Welcome to Healthcare magic. Psoriasis is not a curable disease, but it is controllable. It may go into remissions but cure is not possible. So stop going from one system of medicine to other searching for cure as it is there in your genes. Every 2 out of 100 people will have psoriasis, the type and severity differs. As a dermatologist we see a lot of psoriasis and training to treat psoriasis is a major chunk in our post graduation training curriculum and if a doctor cannot treat psoriasis he will not be a dermatologist. There are a lot of treatments for it according to severity. Even methotrexate induced nausea can be controlled by certain precautions. Oral retinoids like Acitretin works. Cyclosporine, Phototherapy, topical steroids, calcipotriol, tacrolimus, Biological injections etc is available for treatment. Consult an experienced dermatologist and stick by him. He will discuss with you the pros and cons of each and choose the best line of treatment. If one modality does not work go back to him rather than somebody else because he will know what works for you and what not. Hope this helped Take care and all the best