शर्करोन्मथिते पादे क्षते वा कण्टकादिभिः । ग्रन्थिः कीलवदुत्सन्नो जायते कदरं तु तत् ॥ २१ ॥
The tumor which is rising and developing in the form of a nail, caused due to the feet being rubbed by gravel or the foot being injured by thorns etc. is known as Kadara.
वेगसन्धारणाद्वायुरपानोऽपानसंश्रयम् । अणूकरोति बाह्यान्तर्मार्गमस्य ततः शकृत् ॥ २२ ॥
Apana Vata (division of Vata) getting aggravated by suppression of urges (of feces, flatus etc.), makes the passage of the feces constricted from outside as well as inside; then the fecal matter
moves out with difficulty; this disease is known as Ruddhaguda. Pitta and Vata bring about suppuration of the muscle of the nail associated with pain and fever
दुष्टकर्दमसंस्पर्शात्कण्डूक्लेदान्वितान्तराः । अङ्गुल्योऽलसमित्याहु स्तिलाभांस्तिलकालकान् ॥ २५ ॥
By (constant) contact with bad slush, the space in between the toes develops itching and exudation, this is called Alasa. Black, painless, sprouts (moles) on the skin resembling tila (sesame seed) – Sesamum indicum are known as Tilakalaka;