My grandson had a cold and as a result of him I acquired a sore throat for two days followed by a runny nose one day and ultimately laryngitis where I have no audible speech.THe phlegm is greenish. I di;d go to the hospital walk in clinic last evening and wrote my problem for I could not speak.She prescribed Z-pack 250 6 tabs, which I thought would interfere with my Ziac 2.5 with diurectic, she assured me it was okay but my cardiologist previously thought not.I took the first two and still cannot speak.Any suggestions.I have Pine Bros.cough drops, tea, soup water, Robitusan DM.Thanks so much. MC