My 92 year old father was diagnosed with double pneumonia about 4 weeks ago. He was treated in hospital and released after 6 days. After that his legs from the calf down were extremely swollen. Went back to hospital and they said it was water retention and put him on a diuretic. They also discovered a. Blood clot in his right leg. They put him on xaeralto twice daily. Since he has.been taking that water is just dripping and running down constantly from his knees down. Primary care Dr is out of town and he is totally resistant to returning to the hospital. What could be causing this. The Wellness nurse told me it was common.