ɪɾ ɪz ɐplˈaɪd dᵻɹˈɛktli ɔnðə sˈoːɹ ænd wˈɜːks baɪ nˈʌmɪŋ ðə lˈoʊkəl ˈɛɹiə wɪð bˈɛnzəkˌeɪn tə pɹɪvˈɛnt dɪskˈʌmfɚt ænd fˈɔːɹmɪŋ ɐ pɹətˈɛktɪv mjˈuːkəs bˈæɹiɚ wɪð ɐ kˈɑːmpaʊnd bˈɛnzɔɪn tˈɪŋktʃɚ ðæt pɹətˈɛkts ðɪ ˈʌlsɚ fɹʌm fˈɜːðɚɹ ˌɪɹɪtˈeɪʃən, ɐlˈaʊɪŋ ɪt tə hˈiːl mˈoːɹ ɹˈæpɪdli.
It is applied directly on the sore and works by numbing the local area (with benzocaine) to prevent discomfort and forming a protective mucous barrier with a compound benzoin tincture that protects the ulcer from further irritation, allowing it to heal more rapidly.