Good Afternoon, Upper Resp Infection Signs And Symptoms In Which

Good Afternoon, Upper resp infection signs and symptoms in which I have used PVK 500 qid for 8 days concomitant with robitussin dac elixir. Persistent cough and noted phlegm and wondering to change to Augmentin or possibly Biaxin/Cipro. If no resolve with change of the antibiotic in 3-4 days will consider chest xray. Your thoughts are sincerely appreciated