Hi Sir. Hopefully You Will Solve My Problem. My Mother

Hi Sir. Hopefully you will solve my problem. My mother who is 65 years old is a severe asthmatic patient. Now only we came to know that her 80% lungs are damaged. She is on artificial oxygen n Dr say dat she has to take for life long. Is there any medicine which can provide her some relief or which can reduce the intake of artificial oxygen. Please help.