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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
तत्रामृताबलारास्नामहाश्वेताश्वगन्धकैः। स्नेहस्वेदादि वातघ्नं शस्तं नस्यं च तर्पणम्॥८७॥
In this condition amrita (Tinospora cordifolia), bala (Sida cordifolia), rasna (Pluchea lanceolata), mahashveta (Clitoria ternatea Linn.), ashvagandha (Withania sommifera) which are alleviators of vata should be used for oleation, fomentation and tarpana nasya (nourishing errhines) should be employed.
english translation
नस्तःकर्म च कुर्वीत शिरोरोगेषु शास्त्रविद्। द्वारं हि शिरसो नासा तेन तद् व्याप्य हन्ति तान्॥८८॥
A physician proficient in the Ayurveda scriptures should employ nasya karma (errhines) in diseases of the head as the nose being the gateway of head, the medicines administered thereby pervades into the head and cures diseases pertaining to the head.
english translation
नावनं चावपीडश्च ध्मापनं धूम एव च। प्रतिमर्शश्च विज्ञेयं नस्तःकर्म तु पञ्चधा॥८९॥
[Types of nasya (nasal drug delivery therapy)] Nasya karma is said to be of 5 types- navana (unctuous errhines), avapida (expressed errhines), dhmapana (powder errhines), dhuma (smoke inhalation) and pratimarsha (low dose unctuous errhines).
english translation
स्नेहनं शोधनं चैव द्विविधं नावनं स्मृतम्। शोधनः स्तम्भनश्च स्यादवपीडो द्विधा मतः ॥९०॥
Navana (unctuous errhines) is of two types viz, snehana (oleating) and shodhana (purificatory). Avapida (Expressed errhine) is of two types-shodhana (purificatory) and stambhana (astringent).
english translation