I use amla at least once a month or once every two months.
Ooh, is scent one of your migraine triggers or did it just exacerbate a migraine that was brewing from something else? Amla isn't too hard to rinse out – it's very similar to henna actually. Just rinse under the tub faucet and grab some cheap condish and go go go! lol I haven't used coconut milk in my mixes, because I like to keep them very simple. That way if I don't like what the treatment does to my hair, I have a very short list to troubleshoot.