Cheapest and easiest place to start is pickup selsun blue menthol shampoo 1% and start using it daily. Do two cycles of it. Leave it for 5 minutes then rinse then leave it on for another 5-10min and rinse. This works 20x better than nizoral for sebum, mpb itch and shedding and plus it's not anti androgenic like nizoral is. Selenium (active ingredient in selsun blue) acts as a PGD2 inhibitor .