The following video I found from YouTube and I find it effective representation to help relieve pain from migraine and guasa.
I know from experience that if a person have headache, it can be relieved through guasa on the shoulders.
If you do not have the guasa board, you can use a spoon (with no cracked or broken edge) and applying massage oil or baby oil.
Transcribed from the video that is in Malay:
Dr Lu Chi Loo
Headache is a common ailment- usually many methods out there are not effective or does not provide instant relief.
For those who have been having headaches for 10 or 20 years, after doing guasa for 8 times will no longer be recurring often.
If pain at the front, perform the guasa at the front of the head.
If at the back, guasa at the back of the head
the part referred to the “fung zing” the hollow part where the skull meets the neckbone- guasa extra as this is
an important acupuncture point – guasa on that point can help cure the headache.
Using the motion of combing hair- it helps to remove the pain.
30 times from top to bottom
Also for the shoulders, up to down
And the point where the thumb and finger meets.
Gua sha tools/ books are available via Amazon and they are inexpensive: