wˌɛn ɐ pɚsˈɪstənt kˈɔf ɪz pɹˈɛzənt, ɛkspˈɛktɚɹənts mˈeɪ biː pɹɪskɹˈaɪbd tə hˈɛlp kˈɔf ˈaʊt ðə spjˈuːɾəm ænd bˈɛɹiəm pˈɑːɹɾɪkəlz.
When a persistent cough is present, expectorants may be prescribed to help cough out the sputum and barium particles.