Hi....thi si Dr. Kishore, dermatologist
without sputum is not infective one.. it is simple cough., due to irritation of pharyngeal mucous membrane
(allergyic phenomenon) as per Ur findings in ECG is not significant of any cardiology problem..,X-ray is very important investigation...hence first do blood ESR.., and X-Ray reading (already taken ..,U mentioned some stain ..I hope it could be congestion...i.e. consolidation more favour to TB)) to exclude Pulmonary Tuberculosis
..o.k.consult Chest physician...