There are mouth washes that keep the mouth from drying out. Check the pharmacy. It’s near the lister one. After them they get into the more medical mouthwash.
FluticasonePropionate relieved throat clearing and mucus about 90%. It’s prescription.

Thinking of you during this time. Try not to second guess yourself. You did the best you could and your dad knows it.

Could be allergy drainage. It makes me clear my throat.  I use a prescription nasal spray to prevent it.

When my husband had terminal cancer we did two things:

We looked at today and how things were that day.

We did one fun thing each day as our outing. It may have been a drive or just sitting on the porch for coffee but we identified one thing as our it for the day.

Reading these posts are so helpful and uplifting. I’m 71 and in pretty good health so it helps to know there are others living longer than expected.
Years ago my husband was given six months to live with cancer, but he lived six years.
My dad was told he had five years to live with heart failure and he lived 20 years.
Hope is a wonderful thing.

I’m newly diagnosed and fear the 3-5 year life span I’ve read about. Is there anyone living longer to give some encouragement?