My dad's been diagnosed with Stage 4 adenocarcinoma of the upper right lung. He's most recently gone through 13 sessions of radiotherapy and the cough that came with it is absolutely atrocious. He can feel the phlegm building up in the lung and struggles for a 30-45 mins multiple times a day to clear the right lung of the build-up.
He's also experiencing breathlessness so he's got less and less power to cough it all out. His muscles are sore due to the effort required to expel the phlegm, and now he's struggling to find comfy positions to rest.
Can you please suggest ways of clearing up the build up in the lungs? Or something that could help loosen up the mucus as it becomes quite clogged sometimes?
Thank you!