Permanent Lung Damage.
Permanent lung damage is when the lungs get damaged from all of the mucus building up over time. This can have a big effect on health and the lungs which can lead to needing a lung transplant.
People with cf will always need to do treatments. They cant just stop because they don’t feel like it, or else they would end up in the hospital.
Medications will always need to be taken unless there is a cure.