Astanga Hrudaya
मेचकाभोऽसितः स्निग्धो मलिनः शोफवान् गुरुः । गम्भीरपाकः प्राज्योष्मा स्पृष्टः क्लिन्नोऽवदीर्यते ॥ ६३ ॥
Its color can also resemble the eye of a peacock's tail, deep blue, or black; it looks greasy, dirty, swollen, and heavy. It undergoes deep-seated ulceration (gambhira-paka) with high local heat, and when touched, the highly moist tissue breaks down.
english translation
mecakAbho'sitaH snigdho malinaH zophavAn guruH । gambhIrapAkaH prAjyoSmA spRSTaH klinno'vadIryate ॥ 63 ॥
hk transliteration by Sanscript