Psoriasis is a long-term skin condition that cannot be completely cured, but it can be well controlled with proper treatment. Doctors may suggest non-steroid creams, medicated moisturisers, vitamin-D-based ointments, or other newer treatments to reduce scaling, dryness, and itching. Keeping the skin well moisturised, avoiding stress, and following a healthy diet can also help manage symptoms. Some supplements, like vitamin D or omega-3 fatty acids, may support skin health, but they should be taken only after medical advice. Since you also have itching around the testicle area, it is best to consult a dermatologist to rule out any fungal infection and get the right treatment.