A: Most coughs lasting about a week are caused by viruses, such as a common cold or viral bronchitis, and antibiotics are usually not needed. Antibiotics only help for certain bacterial infections, and taking them unnecessarily can cause side effects or antibiotic resistance.
See a doctor promptly if you have:
- High fever or worsening symptoms
- Shortness of breath or chest pain
- Coughing up blood
- Symptoms lasting more than 2–3 weeks
Advice: Rest, drink plenty of fluids, and use over-the-counter remedies to relieve symptoms. Most viral coughs improve on their own within 1–2 weeks.
