Bengay and similar products, such as Flexall, Mentholatum, Capzasin and Icy Hot, variously contain menthol, methyl salicylate (oil of wintergreen), and capsaicin as active ingredients and have a potential to cause first-to-third-degree chemical burns.
bˈɛŋɡeɪ ænd sˈɪmɪlɚ pɹˈɑːdʌkts, sˈʌtʃ ɐz flˈɛksɔːl, mˌɛnθəlˈɑːɾəm, kˈæpzɐsˌɪn ænd ˈaɪsi hˈɑːt, vˈɛɹiəsli kəntˈeɪn mˈɛnθɑːl, mˈɛθəl sˈælɪsˌɪleɪt ˈɔɪl ʌv wˈɪntɚɡɹˌiːn, ænd kˈæpseɪsˌɪn æz ˈæktɪv ɪŋɡɹˈiːdiənts ænd hæv ɐ pətˈɛnʃəl tə kˈɔːz fˈɜːsttəθˈɜːddᵻɡɹˈiː kˈɛmɪkəl bˈɜːnz.