A 62-year-old lady presented with acute onset frontal headache which is worse in the morning, thick, yellowish discharge from the nose, nasal blockage and fever for the past 2 days. She has been...

A 62-year-old lady presented with acute onset frontal headache which is worse in the morning, thick, yellowish discharge from the nose, nasal blockage and fever for the past 2 days. She has been suffering from cold and cough for the last one week. The forehead is tender on pressing, particularly in the middle. A plain X-ray of the face and head showed both sided frontal sinusitis. Her husband informed that 3 months back she sufferred an episode of depression, for which she is receiving Tab amitryptyline 75 mg once daily at bed time and her mental condition is stable now. The doctor decides to start empirical therapy with moxifloxacin 400 mg once daily for 10 days. He also prescribes paracetamol 500 mg 8 hourly for fever and oxymetazoline nasal drops twice daily for blocked nose. (a) Is the choice of antibiotic appropriate for her? If yes, what could be the considerations for selecting moxifloxacin. If no, then give reasons, and suggest the alternative antibiotic(s) that would be appropriate.