I thought my husband was difficult!!!

i don't know for sure what to advise you but perhaps you could ring the doctor and have word,then they could ring your Dad and say he needs to come in for a check up.
Short of tying him up i can't think of any way to force a grown man to do anything he is being so stubborn about.

it must be awful for you and i can only say good luck which seems a bit inadequate..
liz


Liz in the UK

Husband Robin aged 44 years Dx 8th Dec 2006 poorly differentiated SCC tongue with met to neck T1N2cM0 Surgery and Radiation.Finished TX April 2007
Recurrence June/07 died July 29th/07.

Never take your eye off the ball, it may just smack you in the mouth.