Yeah, the congestive heart failure it most likely the cause of her flushed face. It’s probably My father had this too, but when they put him on heavy steroids for his lungs they weren’t as noticeable because of the swelling.
Is she on this drug? Angiotensin-converting enzyme (ACE) inhibitors or another vasodialator? A common side effect of vasodialators is flushing. Makes sense when you think about it.
They are often prescribed for your mother’s condition and help open (dilate) the arteries, making it easier for the heart to pump blood throughout the body. Studies have shown that these drugs, which are often used to treat high blood pressure, can improve symptoms and reduce the risk for sudden death from heart failure.
Perhaps even beta blockers and something for the oedema (a diuretic).
I’m NOT a doctor, but I do a lot of research. Perhaps I’ve given you some questions to raise when you go to your next doctor appointment.