I have had a persistent cough that has got progressively worse, I have hot flushes and also pain and discomfort in back at bottom of rib cage.?
Possibilities... The possibilities for a cough of over 3 weeks duration are bronchospasm from any etiology, gerd, post-nasal drip or a combination of these factors. The pain in the rib cage is probably musculoskeletal from the cough. See your doctor for diagnosis and treatment as all of these have different treatments.
Depends. Chronic cough can be from many things - post nasal drip, asthma, allergies, medications, infection, even reflux (heartburn). This certainly deserves a work-up by your doctor. An x-ray and blood work will go a long way to ruling out an infection. Breathing tests can help rule out asthma. A good history, physical, and medication review will also be required to get to the bottom of this.