Charak Samhita
स्तम्भसुप्तिगुरुत्वाद्याः श्लैष्मिका ये शिरोगदाः। शिरोविरेचनं तेषु नस्तःकर्म प्रशस्यते॥९३॥
In kaphaja shirorogas characterized by stiffness, numbness, heaviness etc. Nasta karma(nasal errhines) especially purificatory type is beneficial.
english translation
stambhasuptigurutvAdyAH zlaiSmikA ye zirogadAH। zirovirecanaM teSu nastaHkarma prazasyate॥93॥
hk transliteration by Sanscript