Charak Samhita
सोऽनन्तवातस्तं हन्यात् सिरार्कावर्तनाशनैः। वातो रूक्षादिभिः क्रुद्धः शिरःकम्पमुदीरयेत्॥८६॥
It is treated by siravyadha (venesection) and medicines that cure suryavarta. The vata aggravated by ruksha etc factors produces tremors of the head.
english translation
so'nantavAtastaM hanyAt sirArkAvartanAzanaiH। vAto rUkSAdibhiH kruddhaH ziraHkampamudIrayet॥86॥
hk transliteration by Sanscript