My Father is liver syrosis patient it was diagnosed in 2011 he went throught a binding operation as fluid was filling in his stomach. his stomach is again bulging now we wet to a Tata Moters hospital and doctors did OGD and said its just gas. Now suddenly he had high fever 4 days ago and with that he got cold, at first it was suspected as covid 19 but later after test he is not positive, body temp went don in one day only but he has heavy coughing, His blood oxygen is 99. But when he lays down on bed he starts coughing heavily and when he sits up its ok, He has not slept in last 2 days bcoz of this he is very anamic. plz suggest what to do.