Since your Chest X-ray and blood reports (
CRP, CBC) are normal, this chronic dry cough (lasting over 6 weeks) is likely not due to a lung infection. In such cases, the most common causes are GERD (Acid Reflux), where stomach acid irritates the throat, or Post-Nasal Drip caused by silent allergies. Another possibility is Cough Variant Asthma, which sometimes doesn't show up on a standard X-ray but causes persistent dry hacking, especially if triggered by dust or cold air."
Next Steps
Try to observe if the cough increases after meals or when you lie down at night; if yes, it's likely acidity-related. Avoid spicy foods and late-night dinners. For immediate relief, continue steam inhalation and honey-ginger, but I recommend a trial of Antihistamines or an Antacid (PPI) for a week to see if the symptoms subside. If it still persists, a Pulmonary Function Test (PFT) would be the next logical step."
Health Tips
Persistent cough for 1.5 months should not be ignored even if initial reports are normal. If you develop any symptoms like night sweats, sudden weight loss, or blood in sputum, please consult a Pulmonologist immediately for a more advanced evaluation like a CT scan or Bronchoscopy