At present all corona patients are asked to wear a mask and stay in a separate room, or are put inside a hall with other corona patients. Thus they have to remain silent almost through the day.
But we must realize that when a patient speaks up, it helps him in 2 ways:
(i) a lot of hot air passes thru the throat region, and the semi-solid mucus in the region starts melting a little bit and can be pushed out of the system by gargling etc.
(ii) When the hot air goes out, it makes way for more fresh air to be breathed in, and makes breathing easier.
So a patient, if he has the energy, must be encouraged to speak a lot to his friends over the phone – even his family men in the nearby rooms ( and keep the phone sanitized) – or to sing to himself if he is an SP.B.