I tried this for a week a while ago and did notice that my roots seemed to be showing more((it's kinda hard to tell since my hair is reddish/light brown and my roots are dirty blonde, it kinda blends))

What I did was I bought the pre-filled applicators of Monistat 4%, and then a big tube of cheap personelle brand 2% cream. I mix a decent amount of the 2% with a few drops of emu and tea tree oil, then I add a small glob of the 4% for extra strength and massage that all over my scalp. I put it on before bed, wear it for work the following day, then shower it out when I get home. It seemed to have been working but I did feel those headaches coming around.

I had to stop because I ran out and didn't have the funds to go buy more, but next week I think i'll start again for two weeks straight and see what happens! I'll keep you guys updated.