Coal tar is inexpensive, relatively free of side effects, safe for use on large body surfaces, and an effective treatment for psoriasis. It is an antipruritic and antibacterial agent that inhibits ...

For his scalp, he was prescribed betamethasone valerate foam 0.12% to be applied directly to the scalp once a day and told to use a tar shampoo containing 4% neutar solubilized coal tar extract (1 ...