Mom2Brett,
I don't know if you do this or not but try having him do his albuterol before the treatment.
Also, is he doing all his treatments at night or just amikacin? If not doing them all together might help open his chest (albuterol, hypersal, vest, amikacin, spiriva, and foradil are my routine)
The only other suggestion I have is try doing his amikacin at a different time and see if that changes anything.
Hope he feels better soon.
I don't know if you do this or not but try having him do his albuterol before the treatment.
Also, is he doing all his treatments at night or just amikacin? If not doing them all together might help open his chest (albuterol, hypersal, vest, amikacin, spiriva, and foradil are my routine)
The only other suggestion I have is try doing his amikacin at a different time and see if that changes anything.
Hope he feels better soon.