Hi.. As you said your husband suffers from psoriasis since last one year.Psoriasis is a chronic relapsing and autoimmune disease. He may be having scaly plaques on various parts of the body,scaly lesions on the scalp. Exact cause is not known. Genetic tendency, autoimmunitity,stress,dry wheather...etc may be responsible for precipitation and exacerbation of the disease. You consult dermatologist for firm diagnosis and treatment. I usually recommend cap acitretin 10 mg twice a day along with methotraxate 15 mg weekly in three devided doses 12 hourly. Folic acid may be taken if there is oral ulcers. All this may be taken for long time till good response. Blood tests may be done to monitor the treatment. He may apply mild steroid cream as he used propysalic or calcipotriol oint as he used sorvate on the lesions. He may apply moisturiser as he used venusia to improve the skin texture. Tell him to avoid soap bath for few weeks. He should avoid stress and worries as that might worsen psoriasis. Homeopathy response for psoriasis may be unpredictable, so, I do not know about its role.Your husband might get good result after few months treatment.I hope you got my answer. Thanks. Dr. Ilyas Patel MD