Charak Samhita
मुखं शब्दश्रवावोष्ठौ शुक्लश्यावातिलोहितौ। विकृत्या यस्य वा नीलौ न स रोगाद्विमुच्यते ॥१२॥
॥ Incurable signs on face, ear and lips॥ If the face, ears and lips become abnormally (without any visible cause) white, brown, excessively red or blue, then such a patient seldom recovers from the disease.
english translation
mukhaM zabdazravAvoSThau zuklazyAvAtilohitau। vikRtyA yasya vA nIlau na sa rogAdvimucyate ॥12॥
hk transliteration by Sanscript