Your 15-day cough with no relief from antibiotics, combined with a chest X-ray showing mild prominent bronchovascular markings (and otherwise normal findings: clear CP angles, normal cardiac silhouette, normal domes of diaphragm, no consolidation, no mass, no pleural effusion), is most likely a viral or post-viral cough (common in adults after respiratory infection).
Antibiotics do not help viral/post-viral coughs — they only treat bacterial infections, so lack of improvement is expected and not a sign of treatment failure. The X-ray changes are mild and non-specific (often seen in normal people, recent viral illness, allergies, pollution exposure, or early bronchitis) — they do not indicate pneumonia, TB, cancer, heart failure, or any serious lung disease. This is not alarming and fits a benign, self-limiting process in 90%+ of cases at your age (39 years male).
Next Steps
1. Stop antibiotics immediately — they are unnecessary and can cause side effects (diarrhea, resistance) without benefit.
2. See a general physician or pulmonologist within 3–7 days (not emergency unless fever >101°F, blood in sputum, severe breathlessness, or chest pain) — for clinical exam and reassurance.
3. If cough persists >3–4 weeks despite symptomatic treatment → ask for repeat chest X-ray or sputum test (for atypical infection), but this is usually not needed.
Health Tips
• Drink warm fluids (water, herbal tea with honey/ginger/tulsi) 2.5–3 liters daily — soothes throat and thins mucus.
• Take steam inhalation (plain hot water or with Vicks) 10 min, 2–3 times/day — excellent for cough relief.
• Use lozenges (Strepsils, Vicks, or honey-based) or warm salt water gargle 3–4 times/day for throat irritation.
• Take levocetirizine 5 mg or fexofenadine 120 mg once daily at night (reduces allergic/post-nasal drip component).
• Avoid cold drinks, ice cream, spicy/oily food, dust/smoke exposure, and AC direct on face.
• Rest voice, sleep with head slightly elevated (extra pillow) to reduce post-nasal drip at night.
This type of prolonged viral/post-viral cough usually resolves completely in 3–6 weeks with supportive care — antibiotics are not the answer here.
For a detailed, personalized recovery plan (safe cough syrups/expectorants, exact medicine doses, best steam technique, diet to avoid triggers, which doctor in your city is best for persistent cough, and how to know when it’s time for further tests), please book an online consultation with me — I’ll review your full symptoms (dry/wet cough? sputum? triggers?), fever pattern, and X-ray to give you clear, step-by-step guidance so the cough disappears quickly and you breathe easily again.
Looking forward to helping you get back to normal fast — book now and let’s resolve this together