Irivellika are eruptions having features of all the three doshas, round in shape and appearing in parts above the shoulders. Vidari is eruption hard like tuber of Pueraria tuberosa and appears in the axilla and groins.
मेदोऽनिलकफैर्ग्रन्थिः स्नायुमांससिराश्रयैः । भिन्नो वसाज्यमध्वाभं स्रवेत्तत्रोल्बणोऽनिलः ॥ १७ ॥
Tumor caused by fat, Vata, and Kapha, involving tendons, muscles, veins etc. exudes fluid resembling muscle-fat, ghee, and honey when pricked; Vata getting aggravated by it,
out of the accumulated gravel. This disease is known as Sharkarabuda. Tumor appearing in the palms and soles, joints or parts of body above the collar bone, developing slowly like the ant-hill,
वल्मीकवच्छनैर्ग्रन्थिस्तद्वद्बह्वणुभिर्मुखैः । रुग्दाहकण्डूक्लेदाढ्यैर्वल्मीकोऽसौ समस्तजः ॥ २० ॥
having small and large openings (orifice) like it, accompanied with pain, burning sensation, itching and copious exudation, is known as Valmika and is caused by all the doshas together.