My husband is very sick, coughing and so fatigued. He has had his symptoms for over 10 days. He is on his last pill from a ZPack that he was prescribed (5 day course). His coughing is more productive, but he is still coughing A LOT. He is also so fatigued he can barely walk, the fatigue seems to be getting worse. He is still coughing a lot, it has become more productive, but it is non stop at night. Shouldn t he be feeling better by now?I m trying to talk him into going back to urgent care, but he is being stubborn. What else would he be given to treat his illness if he does go back? Thank you.