Coal tar preparations should never be applied to inflamed, broken, or infected skin. Doing so can cause pain and trigger a ...

Coal tar is inexpensive ... [11] In current therapeutic regimens, tar preparations are most often used in shampoos for treatment of scalp psoriasis.

Coal tar treatments have been used for psoriasis for over 100 years and ... in triamcinolone (0.1%) cream. A preparation of 10% tar in a fatty-acid based lotion can also be effective.

Other common treatments include coal tar preparations and steroid-based creams. In natural medicine, a commonly used treatment for psoriasis is the herb Mahonia aquifolium, also known as Oregon grape.