Hello thanks for the query to H.C.M.C.
There is difficulty in deglutition i.e something is in the oesophagus (food pipe) at its lower end which is preventing any thing to enter in stomach.
GASTROSCOPY is advised at this stage to find out what is in oesophagus ( tumor
The age of patient is in advance stage so doctor want to infuse I/V drip so that general condition of patient could be maintained at any cost.
Further pl get in many tests so that proper treatment could be given.
Since patient won't to go hospital you can't do any thing except pray to almighty god.