However , if you are eager to find out the very exact location of that particular acupuncture point to further verify the information given above, I would suggest you to seek consultancy from a licensed acupuncturist.
Next, about the question of how would one know that he / she is applying the blunt-pointed instrument-aided pressure at the right point (the "He Gu" acupuncture point), well, the nerves of our bodies especially the ones closely adjacent to each other, would tend to interwind, overlap and interconnect among one another. Whilst the 1.5 cm and its location on the wrist as portrayed in the diagram below for the 'He Gu' acupuncture point is actually a standard measure for the size of the hands of the average grown adults.
ext, applying blunt-pointed instrument-aided pressings upon it (or any points around that 'He Gu' acupuncture point area - please refer to the diagram) will actually generate direct stimulations to the other nerves surrounding that pressed point around the wrist area as well, and subsequently, produce a reflexology stimulus / 'qi' that will flow / travel right up to the 'final destinations' (please refer to the medical references weblink added below), which are the peripheral nerves attached to the muscles of the entire face, especially the eyelids to generate the desired healing effects to the intended areas by gradually restoring their bodily chemical balances. In my case and the others, that acupuncture technique actually serves to gradually and eventually drive out the risperdal toxins / other related contaminating substances that disrupt the normal functioning of the dopamine neurotransmitters chemicals of the neurons / nerve cells around our eyelid muscles and cause all those rapid unwanted eyelid-twitching / eye-blinking, totally out of our bodies and enable us to get totally cured once and for all in the end.
In this regard, based on the acupuncturist, the blunt-pointed objects such as normal writing pen (which is out-of-ink of course) etc instructed to me for such self-administred therapy is actually intended as a substitute for the acupuncture needle to deal effectively with the particular acupuncture point.
Unlike the other traditional method of acupressure which involves the use of fingers to press and massage the acupuncture points, the use of blunt-pointed object in such a case for the treatment of chronic eyelid-twtiching is actually meant as a 'leverage' to provide an adequately focused and hence a 'reflexology stimulus' that is strong enough to deal more precisely and effectively with that acupuncture point.
Whereas, if that acupuncture point is to be treated with fingers, the stimulus effect generated would be very much smaller due to the fact that such pressings and massagings would reasonably not last long enough to provide any reliefs for the chronic eyelid-twitching. Besides, given the larger suface area of the fingers as well as their rounded physical shape (compared to the blunt-pointed objects), a large part of the forces produced from such pressings and massagings would then be reasonably applied onto the related muscles rather than directly onto the intended nerves through the related acupuncture point to deal effectively with such sickness.
Please be reminded that a good sleep at night throughout the therapy period is essential for the healing to be effectively done. And a person shouldn't associate oneself again with the underlying causes such as over-straining of the eyes, excessive cafeine intake, allergy/overdosage of certain medication (with muscle spasms side effects) that causes this non-stop eyelid-twitching to the particular person in the first place to avoid a relapse of that sickness, especially after getting cured from it.
Please take note that one should continually apply that method in the case where it proves to be effective in dealing with the eyelid twitching problem (after trying it for about 3 days' time).
For your reference, I get my eyelid twitching stopped the next day after the acupuncture treatment. But when I stop the treatment for the next few days, the twitchings just come back again. Based on the acupuncturist, the explanation for the relapse is such that if one were to apply just one-off / short-term treatment, it would then only serve to disperse the dopamine-disturbing toxin / other 'contaminating agents' around one's eye nerves enabling the twitching to stop just temporarily (without totally purging such toxins / 'contaminating agents' out of the human body). So, it works just like doing a physiotherapy whereby one should complete the whole course of treatment (in this case, applying that self-administered technique persistently for weeks/ a few months) to get the eyelid-twitching sickness totally cured effectively once and for all in the end.
Next, the suggested duration of two-hour period/day (continuous non-stop healing process) for that self-administered treatment is just what I have recommended so far to other persons having the similar symptoms based on my very own healing experience from this eyelid-twitching sickness and the others who suffer from it (who eventually get it totally cured). All in all, it would acutally depend on one's healing progress for the eyelid twitching sickness upon applying that suggested self-administered acupuncture method.
Related References : Diagram of The 'He Gu' Acupuncture Point : Medical References For The 'He Gu' Acupuncture Point :
Based on the feedbacks and responses so far from the ones (both in my real life and those seeking helps from me through email) applying this suggested self-administered acupuncture therapy for chronic, especially medication-induced rapid non-stop eyelid twitching / eye-blinking disorders, it just turns out that empirically the longer blunt-pointed object such as the normal writing pen (which is out-of-ink of course) etc is much more effective and practical (than a toothpick) for this suggested cure especially when it comes to applying the instrument-aided pressings on the specified "He Gu" acupuncture point as illustrated in the post above. Besides, since it won't cause much undesirable physical annoyances to its users, it is thus a much more user-friendly implement for this suggested acupuncture technique.