its an old method pass down from the older generation.
Back when my family had a sugarcane plantation behind my house in Johor.
we always go and cut the sugarcane to eat.
The sugarcane also has these needle like thorns and like the bristleworm's, can be painful.
my grandma always tells us to just rub our hand against our hair.
true enuff...all gone.
Tried & tested method.