PRACTICAL HEALTH · SYMPTOMS
😷 Cough
Cough is a protective reflex and may occur with respiratory infections, irritation, allergies and many other conditions.
What should you notice?
- How long the cough has lasted.
- Dry cough or mucus production.
- Fever, wheezing or shortness of breath.
- Blood in mucus.
- Chest pain or worsening general condition.
Possible causes
These are examples, not a diagnosis. The same symptom can have many different causes.
- Viral respiratory infections.
- Allergies or airway irritation.
- Asthma and other airway conditions.
- Reflux in some people.
- Other lung, heart or medication-related causes.
What can you do initially?
- Stay hydrated when appropriate.
- Avoid smoke and other respiratory irritants.
- Monitor duration and associated symptoms.
- Seek medical evaluation for a persistent or worsening cough.
🚨 Warning signs
- Severe difficulty breathing.
- Blue or gray lips or skin.
- Coughing up significant blood.
- Chest pain or pressure with concerning symptoms.
- Rapid deterioration or altered consciousness.
If you believe the situation is life-threatening, call 911 in the United States.
Medical sources
Medical review: September 2026.
Educational information: This page provides general health information. It does not establish a diagnosis, prescribe treatment or replace evaluation by a qualified healthcare professional.