Astanga Hrudaya
उद्वेजयति जिह्वाग्रं कुर्वंश्चिमिचिमां कटुः। स्रावयत्यक्षिनासास्य कपोलौ दहतीव च॥५॥
Katu (pungent): Katu (pungent) stimulates the tip of the tongue, causes irritation, brings out secretions from the eyes, nose and mouth and causes burning sensation of the cheeks.
english translation
udvejayati jihvAgraM kurvaMzcimicimAM kaTuH। srAvayatyakSinAsAsya kapolau dahatIva ca॥5॥
hk transliteration by Sanscript