My husband was diagnosed with Stage IV non small cell lung cancer Oct. 2. Since then he's began treatment with Keytruda, has had 3 liters of fluid drained from his lung and is on oxygen when he is on his feet. The doctor says it's too soon to tell if the treatment is working and will likely not rescan until he has had 5-6 treatments. He has had mild dementia for several years, but has always been active. I am searching for any information and things that I can do to help him be more comfortable. Thank you! Deb