Hello my name is Carl , my dad's got stage 4 stomach cancer which has gone to his liver. He hasn't eaten anything for 4 weeks but still drinks abit of water. He is an amazing man hes been in bed for 4 weeks and is getting very weak but still trys to go to the toilet by him self but we have to step in and help him. My question is after he has drunk some water he coughs a little bit after, the nurse told us to stop giving him water because it can cause pneumonia but he asks for water , what do I do to help him be more comfortable.