Psoriasis aggregative condition. Too?

I am see my father with  psoriasis from my childhood and it was in control. But last year my father was diagnosed prom started aggregating and been to CGHS doctor and he only suggested to go for topical application till his liver conditions improve completely. Mixed (Liquid paraffin + Mosque na ointment) at night. And (white soft Paraffin cream) in morning Though applied he is not finding relief out of it . Very bad condition of fakeiness and itching and severe pain. He feels skin is very stiff and pulling hard kind of pain.. Now he needs to change of other medication... And hopefully we find solution at this pandemic time not able to step out of the house to see any doctor Other medications used are udiliv for his liver condition And he is using BP tabs too