a high eosinophil count......doesn t link with a chronic cough,according to all the cause and effect literature l ve read on a high count of these white blood cells.....my wife for a long time has a high count of Eosinophil and for many years has tried every process/procedure,medication to try and eradicate the debilitating cough she has been plagued with without success.......she had a stressed induced heart-attack after a severe bout of coughing .........there is little or no phlegm during these coughing spells.....anything spring to the fore ?......thanks for your time
I am sorry for the troubles that she is experiencing.  I don't want to just recommend an allergist, but a high eosinophil count is usually indicative of some uncontrolled allergy which can often be something in the home environment.  Fortunately today there are a number of treatments that can be directed towards the eosinophilic itself.  If you haven't done so already, I would also recommend getting anti-allergen pillow and mattress covers as well as a high efficiency air filter for to be Chat Doctor. 