Respected user, hi I evaluated your query.
*This is not simple Respiratory infection, there is definitely underlying
  pathology confining you to the bed.
*Priority is to evaluate the  diagnosis & then perfect treatment accordingly.
*First thing you require is hospitalisation in good set up to get intensive
  Intravenous treatment as oral medications are not at all going to work
  in this scenerio.
@Along with treatment you will be evaluated in further terms like 
  Pulmonary Function Tests , 
Bronchoscopy , 
CT Scan Thorax according to 
  the decisions  of your treating Pulmonologist.
@ Till then gentle advise :
 - don`t smoke - maintain your hydration with plenty of liquids - avoid 
   exposure to 
cold - continue current medicines.
 Hope this clears your query.
 Thanks for using Health Care Magic & keeping trust in our medical services
 Wishing you fast and speedy recovery from the same.
 Regards dear take care.