Hey man,
I will tell you very simple solution for hairfall, please follow them in varying steps if things don't work.
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Switch to RO water for your hair showers, do not let any other water apart from RO water touch your hair.
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Follow a timely diet with lots of fiber.
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If the above doesn't work, go for a PRP treatment. It is not a hair transplant treatment, for the whole course of 12 months or 12 sessions will cost you around 60k with meds
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Minoxidil will be prescribed in any hairfall treatment, but Minoxidil needs to be applied regularly till the date you don't want hair, because once you stop minoxidil your hair will start to fall again.
I have had my own treatment started 6 years ago, so everything above has worked for me, I have the best hair in the last 8 years.
Hope it helps