Hello, My father was diagnosed with CKD stage 5 in March this year and is on haemodialysis twice a week since the month of May. Since the last few weeks he has had a constant coughing problem which worsened as he was affected by the common cold. The cough is usually followed by mucous which is a little greenish in color. He stopped taking dytor for about a month as he started having massive weight loss. The ultra filtration process does not happen from him( limit to 200 ml) as his weight is constant at 45 kgs. The coughing is along with congestion and shortness of breath. What could be the possible reason?