This is dr. David
the heart condition most likely is not connected to the sinus issue.
which is most likely separate and caused by allergies or chronic sinusitis.
he might need allergy medications or a steroid nasal spray to help his sinuses.
or a sinus CT scan to check for chronic blockage of his sinuses.
He uses nasonex which opens up the tubes and the fluid starts running down his throat and he coughs and coughs.
Is it the heart condition causing the tiredness or the sinus. no point in taking this conversation any further as you are offline.