Hello,
Psoriasis is a non-contagious disorder which affects the skin and joints. It commonly causes red scaly patches to appear on the skin.It can be treated but it commonly has recurrences also and there are no home remedies for psoriasis. So a regular treatment is required for this. Treatment options include Ointment and creams containing coal tar, dithranol (anthralin), corticosteroids like desoximetasone (Topicort), vitamin D3 analogues (for example, calcipotriol), and retinoids,Psoralen+UVA and PUVB therapy. Over time, psoriasis can become resistant to a specific therapy. Treatments may be periodically changed to prevent resistance developing (tachyphylaxis) and to reduce the chance of adverse reactions occurring.
I sincerely hope that helps. Take care and please do keep me posted on how you are doing.
Yes, deoderants and fragrances affect psoriasis. Try washing his clothes separately in hot water with baking soda. As far as home remedies, I know none. Sorry.