Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice.
My thoughts and suggestions are as below. Deep hacking
cough, taste of blood although the blood is not visible, recurrence of symptoms in spite of a course of antibiotic,
steroid and Delsyn indicate that there is a cause that has not been cured. The possible infection can be from the
sinuses or so. Hence I would advise you the following in such a situation: Consult an ENT Surgeon too for a
second opinion and go for investigations as follows:
Tests of blood for CBC and others as required.Tests of the phlegm for gram staining, culture and sensitivity.
X-ray of Chest and Sinuses followed by
CT scan if indicated. Clinical evaluation and examination. All these will give an idea about the possible cause that is giving you the symptoms and get an additional management. Till then do the following:
Steam inhalation by plain water boiling. Avoid sudden atmospheric changes like
cold to hot. Take
bed rest. Avoid people with viral infection. Avoid scents, fumes and so on; anything that irritates the respiratory passages.
Hope I have answered your query. Let me know if I can assist you further.