Coal tar can help slow the growth of skin cells and make your skin look better. It too comes in many different forms. The weaker products are available over the counter. The shampoo helps treat scalp psoriasis.
Coal tar doesn't smell good, and it can irritate your skin and stain your clothes.
Follow the directions carefully. Some studies show that the chemicals in coal tar are cancerous, but this is only true at very high doses. It's safe to use these products if you follow your doctor's instructions.