Coal tar shampoos are also available to treat scalp psoriasis. Compound pharmacists who customize medications can mix crude ...

A clinical diagnosis was made of psoriasis and he ... be applied directly to the scalp once a day and told to use a tar shampoo containing 4% neutar solubilized coal tar extract (1.0% coal tar ...

Coal tar is inexpensive ... tar preparations are most often used in shampoos for treatment of scalp psoriasis.