What should you know about constant cough and nosebleeds?

Coughing can increase pressure in small blood vessels inside the nose, while dry air, rubbing, forceful blowing, or nasal sprays can make the lining easier to bleed. Post-nasal drainage from Allergic Rhinitis or a Common Cold may keep the throat irritated. A cough can also occur with Acute Bronchitis, Asthma, Acid Reflux, or Chronic Cough. Nosebleed blood usually comes from the front of the nose; blood that is coughed up from the chest can look different and needs prompt attention.

The combination does not identify one condition by itself. A clinician may ask whether the blood is from the nose or lungs, how long the cough has lasted, whether you take medicines that affect clotting, and whether you have fever, breathlessness, wheezing, or weight change.

When a nosebleed starts, sit upright, lean slightly forward, and pinch the soft part of the nose continuously while breathing through your mouth. Avoid tilting your head back. Once it stops, avoid forceful nose blowing and strenuous activity for a short time. Drink fluids, use gentle nasal moisture if suitable for you, and avoid smoke or other irritants. Arrange a medical review if the cough persists, the bleeding keeps returning, or symptoms are affecting sleep.

Seek urgent care for heavy or ongoing bleeding, trouble breathing, chest pain, faintness, coughing up more than a small streak of blood, or a cough with severe weakness. Get prompt advice after a head or facial injury, or if you take blood-thinning medicine. A child, older adult, or person with significant lung disease may need earlier assessment.

Ask whether the blood is likely nasal or respiratory, whether your medicines or nasal products could contribute, and what examination or testing is appropriate if the cough continues.