from what i've read, you're not supposed to let it ferment for that long. some people use it after only a half hour of soaking but i feel like 12 hours to one day (depending on the heat / humidity in your house and whether it's exposed to direct sunlight, sometimes it ferments much faster due to those factors) is the sweet spot for actual benefit to the health of your hair as opposed to just making it sleeker/shinier
if it's been fermenting for several hours to a day, you're also supposed to dilute it because the acidity increases the longer it ferments and too much acidity can be harmful for many types of hair (think of things like apple cider vinegar rinses and how they tell you to dilute it to avoid damaging your hair)
i've forgotten about my huge jars of rice
water for several days, i just dump it because even if i dilute it to the point where it's mostly filtered water and barely rice water, it smells and feels very acidic which i feel probably isn't good for my hair.
i hope this post isn't patronizing or rude, i'm not sure about the traditional ways to ferment and use rice water but i agree with you that it gets very gross after a few days, and i think it is also likely
to damage many types of hair because of the acidity>>156072
they make hydrating and moisturizing masks for your scalp, klorane's soothing shampoo with peony is supposed to be good for things like this but i haven't tried it personally
most people who have worked with hair for a long time say to avoid scalp scrubs and harsh clarifying shampoos because the scrubs can create microtears on your scalp (similarly to coarse scrubs for the face) and the really harsh stripping clarifying shampoos tend to dry out your scalp and roots
rene furterer's complexe 5 plant stimulating concentrate oil comes recommended by people who work a lot with hair and has good reviews, it's very expensive but might go on sale for the holidays. oils and creams specially formulated for the scalp are really good for a dry flaky scalp, you'll probably want to check the ingredients for fragrance and anything irritating though
a fragrance free dry oil for hair with non irritating ingredients might be a good alternative to a 50$ special scalp oil, they tend to absorb decently well and won't leave you greaPost too long. Click here to view the full text.