destroys diseases of the skull/head

कीचकानां फलैः पिष्टैः कटुतैलं विपाचितम् ।
सगोमूत्रं तदभ्यङ्गात् कपालव्याधिनाशनम् ॥

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पदच्छेदः व टीका (Word-by-word meaning and explanation):

• कीचकानां = of Kīcaka (a type of bamboo – മുള, possibly Bambusa arundinacea)

• फलैः = with the fruits

• पिष्टैः = made into a paste

• कटुतैलं = pungent oil (like mustard oil – कटुतैलं)

• विपाचितम् = cooked well / processed

• सगोमूत्रम् = along with cow's urine (गोमूत्र)

• तत् अभ्यङ्गात् = by applying that as massage/oil therapy

• कपालव्याधिनाशनम् = destroys diseases of the skull/head (especially chronic sinusitis, headache, frontal disorders)

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भावार्थः (Translation in sentence form):

The fruits of Kīcaka (bamboo) are ground into a paste and cooked with pungent oil. When this preparation is mixed with cow's urine and used for external massage (abhyanga), it is effective in curing diseases related to the head or skull, such as कपालव्याधि (likely referring to sinus issues, frontal headaches, etc.).