Welcome @heathe26. You must be worried about your mom. I'm tagging fellow members @tplante1970 @wifemom3 @christih2 @opheli who have experience either personally or of a loved one who has colon cancer that metastacized to the lungs. They may be able offer experiences and tips about dealing with congested cough.

You might also appreciate connecting with other stage 4 colorectal cancer members in this discussion:
– Hi, stage 4 colorectal cancer here https://connect.mayoclinic.org/discussion/hi-stage-4-here/

Heather, is your mom in the care of a palliative care team?