I use minoxidil once a day every day. It's Kirkland liquid around 1.5-2ml per day. I've been doing it for around 6 months and my scalp is becoming very dry, itchy and there might be some flakes too. I have to shampoo every day to wash out the minoxidil. If I shampoo with Nizoral, the scalp seems to get worse. But, even if I use a fancy sulfate free shampoo, the scalp is not so great. What can I do to help it? Should I apply olive oil or coconut oil or something similar? Thanks.