About Wacky's Mum having trouble with treatment

Hi I am posting this as Wacky has not had much response to his call for advice and help, posted under Family, partners and friends. His post is not showing under Latest Posts so I am posting a link here.
http://www.breastcancercare.org.uk/community/forums/tattoo-mum?page=2

. Starts off as about Wacky’s tattoo but his last post reads
"I had a phone call from dad today asking if i could go and have a chat
with mum. when i got there she was in bed. she looked terrible. She has
not eaten for 2 1/2 days. She is being sick. She refuses to take her
Medication. She is hallucinating. (seeing things on the ceiling that are
not there) She does not have the strength to get the the bathroom and
my dad struggles to help her. (he is 78) Mum looks like she is filling
with fluid, her neck and face is swelling on the same side as her arm,
really bad. the swelling in her face is making her voice sound
different, like someone talking with something in their mouth. She is
still as stubborn as usual. If we mention hospital or Macmillan she gets
very angry and upset. Dad and i dont know what to do for the best.
HELP! : ( "
Wacky is a lovely guy and a very caring son. I have said call for help whatever Mum says. Any other suggestions?