Quick read
Key points
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Catarrh refers to a build-up of mucus in the nose, throat, or sinuses, often causing a blocked or runny nose, a feeling of mucus dripping down the back of the throat, and sometimes a cough. It's commonly caused by colds, allergies, or sinus irritation, and usually resolves on its own within a few weeks.
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Topic-specific prevention and risk reduction will be added during the article-specific evidence audit.
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Catarrh persists for more than a few weeks
01 · Know
What is Catarrh?
Catarrh refers to a build-up of mucus in the nose, throat, or sinuses, often causing a blocked or runny nose, a feeling of mucus dripping down the back of the throat, and sometimes a cough. It's commonly caused by colds, allergies, or sinus irritation, and usually resolves on its own within a few weeks.
While uncomfortable and sometimes persistent, catarrh usually isn't a sign of anything serious, though ongoing symptoms are worth mentioning to a doctor if they don't settle or are significantly affecting quality of life.
02 · Understand
Clinical context
Identifying an allergy trigger can make a real difference
If catarrh is persistent and linked to allergies, identifying and managing the specific trigger — such as dust mites or pollen — alongside appropriate treatment often brings more lasting relief than treating symptoms alone.
03 · Act
When to See a Doctor
- 1Catarrh persists for more than a few weeks
- 2You develop facial pain or pressure, which could suggest a sinus infection
- 3You have persistent hoarseness or difficulty swallowing alongside catarrh
- 4Symptoms are significantly affecting your sleep or daily life
04 · Prevent & manage
Practical steps
Decongestant Sprays Shouldn't Be Used Long-Term
Over-the-counter decongestant nasal sprays shouldn't generally be used for more than a few days, as prolonged use can actually worsen congestion once stopped (a rebound effect).
- 1Use a saline nasal rinse.This can help clear mucus and soothe irritated nasal passages.
- 2Stay well hydrated.This can help thin mucus, making it easier to clear.
- 3Identify and avoid potential triggers.If allergies seem to be contributing, reducing exposure to dust, pollen, or other triggers can help.
- 4Avoid prolonged use of decongestant sprays.Follow package instructions and avoid using these for more than a few days at a time.
Evidence
References
BarnMD Health Intelligence uses authoritative and clinically relevant sources appropriate to the topic. References are shown so readers can inspect the evidence directly.
- NHS: Catarrh ↗
Medical information notice
Health education, not individual medical advice
BarnMD Health Library provides general health education for public health literacy. Reading this article does not establish a doctor-patient relationship and this information is not a diagnosis, prescription, or personalised treatment plan. If you have symptoms or concerns about your health, seek appropriate advice from a qualified healthcare professional. If you develop emergency warning signs, seek urgent or emergency medical attention.
BarnMD Bottom Line
Catarrh is common and usually resolves on its own or with simple self-care, though persistent symptoms are worth checking with a doctor.
Avoid prolonged use of decongestant nasal sprays, as they can cause a rebound worsening of congestion.