Covid positive health problems.

My husband is 30 and he tested positive for Covid 19 last week. He had several issues like heavy body pain , high temperature, throat pain, fever, headache, watery eyes, sneezing. Now he is suffering from severe cough and breathing problem. I'm at my mother's home and he is hospitalized now. Things are getting worse day by day. He can't even breathe properly. He had constipation for several days and I asked him to take more fruits and drink plenty of water. Now he  shifted to a new hospital  for better treatment. I'm very anxious that he is having difficulty in breathing and took CT scan yesterday and the report said mucus level is high. I'm very much worried about him. What to do , previous hospital only gave him some tables for coughing. No special care was given to patients .