How can you tell your boss to cover his mouth when he coughs without making him !
Question: you cough in your hand and say excuse me.
Answers: you cough in your hand and say excuse me.
don't say anything, just start wearing a surgical mask whenever you are around him, he should get the message.
Every time he coughs over you, take the next two or three days off as sick leave. When you return to work, mention the fact that you remember he coughed and that maybe you caught something from him. He'll soon stop coughing.
don't say anything