“Dermatologists prescribe coal tar shampoos for scalp psoriasis if needed and it is considered safe for long-term use,” Dr. Kazin says. Note, however, that using the products too often or on a ...

coal tar, and tea tree oil that can help with flaking scalps. Read on for everything to know about flaky scalps and the 17 best dandruff shampoos to help relieve them. FAQs Our top picks ...

Mack Rachal, MD, PhD: Generally you want to shampoo three to five times a week ... flaking that you see is significantly reduced by coal tar. It used to be not a very elegant element of the ...