Ashtangasamgraha 37.3

37.3

tatra dhyāmaṃ piṭakācitaṃ śophavedanāvantaṃ muhurmuhuḥ śoṇitāsrāviṇaṃ budbudavadudgataṃ mṛdumāṃsaṃ ca vraṇaṃ saśalyaṃ vidyāt ||

There, one should know a wound containing a foreign body as dark, covered with eruptions, accompanied by swelling and pain, repeatedly discharging blood, elevated like a bubble, and having soft flesh.