Any non-medical creams available to relieve symptoms of psoriasis?

I try to use natural healing remedies whenever possible.  Are there any non-medical creams that can be used to help relieve symptoms of psoriasis?

Betnovate cream is a commonly prescribed treatment for psoriasis

Betnovate cream is a commonly prescribed treatement to help relieve symptoms of psoriasis. However, betnovate cream will trypically only provide relief if the patches of scaly dry skin are severly red and irritated.

Tar-based creams might provide more relief in certain instances however a doctor should always be consulted before starting a new treatment method. Creams called emollients will often hep to soften dry skin as well and relieve some of the symptoms of psoriasis.