Well really its pain me to say, I cant afford this smell of himgange oil. however I have headache always and I used to oiling my head but smells is really hard to swallow even though my tears comes out.
yes it work for sure, if someone masaj your head either it wont with your hands.its good oil but avoid on forehead otherwise You will face tear bomb on this oil.
my experince is not really good but my mom often use this oil to stay tenson free. she got headache in seconds and all time medicine may kill you early.
so using this oil to aboid pills.
my mom said its okay.but good luck with yours.