Nosebleed due to cold medicine
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NHS nosebleed first aid when to seek emergency medical help
Cold medicines can contribute to a nosebleed by drying the inside of the nose, especially decongestants and some antihistamines. Frequent nose blowing during a cold is also a common trigger. Decongestant nasal sprays can irritate the lining if used too often or for more than a few days.
What to do now
- Sit upright and lean slightly forward. Do not tilt your head back.
- Pinch the soft part of both nostrils firmly for 10-15 minutes continuously.
- Breathe through your mouth and spit out blood rather than swallowing it.
- After it stops, avoid blowing/picking your nose, heavy exercise, hot drinks, and alcohol for 24 hours.
- Use saline nasal spray or a thin layer of petroleum jelly just inside the nostrils to reduce dryness.
Seek urgent medical care if bleeding lasts beyond 10-15 minutes despite correct pressure, is heavy, follows a significant head injury, or you feel faint, weak, short of breath, or are swallowing enough blood to vomit. This is also more urgent if you take blood thinners such as warfarin, apixaban, rivaroxaban, clopidogrel, or aspirin. Do not stop prescribed blood thinners without medical advice. The NHS nosebleed guidance gives similar emergency thresholds.
If you tell me the exact cold medicine or nasal spray you used, I can help assess whether it is likely contributing.
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