Asbestos in lungs

[Ceetothelizzo]

My roommate inhaled asbestos on a construction site over three years ago- he went to his family doctor, they performed a bronchoscope biopsy and determined he has fiberglass shards in his lungs, more or less stated there was nothing that could be done, and sent him on his way. He coughs uncontrollably for 30 minutes or more at a time in the morning and before he goes to sleep. He cannot do any physical activity for any great length of time. I have heard of "mineral flushes" for the lungs to remove the fiberglass from the lining of the lungs, but cannot find any information on it. I am looking for a non-surgical resolution to his problem if it is feasible- before his condition worsens into asbestosis or mesothelioma. He inhaled the fiberglass in the air in a small cross-base over a three day period with no protective mask or other safety gear. The cough is dry and hacking and is non-stop for sometimes up until an hour. Can you please help me help my friend?
Thank you,
                                      Cliff in San Diego, CA