I would be inclined to consider adding Bordetella bronchiseptica 200C  
to the regime.
This is a very closely related organism (to whooping cough) from  
which this remedy is made - whooping cough being bordetella  
pertussis. They are so similar there is only one gene different.
The pertussis has a gene for the whoop cough
The bronchiseptica has a gene for alkali in the lungs due to lack of  
alpha lipoic acid which it destroys (AND WHICH IS GOOD TO  
SUPPLEMENT) , and causes a hacking - perhaps to try to cough out the  
sore lungs.
Your described symptoms sound as much to me like Bronchiseptica ones  
as pertussis ones.
I suggest the remedy as it follows the law of being a similar remedy  
without being totally identical.
In fact I believe this is why cowpox vaccine works against smallplox  
and why tuberculosis vaccine works against Leprosy - same idea of  
similarity in both cases.
Personally I have used this remedy (and have it in several potencies)  
in epidemic style outbreaks in cats and sheep, and in myself and  
three other people who got ill while working with ill animals. I was  
having a very hard time using traditional homeopathy alone, before  
adding this about twice a day (not using it alone) to the regime,  
long with the seemingly best indicated simillimum.  Since then I  
start this remedy at the first sign of an outbreak and it is over in  
days. (It used to have a high death rate esp in cats.)
Namaste,
     Irene
-- 
Irene de Villiers, B.Sc AASCA MCSSA D.I.Hom/D.Vet.Hom.
P.O. Box 4703 Spokane WA 99220.
www.angelfire.com/fl/furryboots/clickhere.html (Veterinary Homeopath.)
"Man who say it cannot be done should not interrupt one doing it."