Doctors Diagnose Rare Lip Swelling Triggered by Nose Blowing
A 36-year-old patient was diagnosed with vibratory angioedema after experiencing recurring lip swelling following nose blowing.
Updated on Oct. 28, 2026 in Allergies
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In an August 2025 case report, medical experts described a 36-year-old man who suffered five episodes of lip swelling and numbness over an 18-month period. Doctors determined the symptoms were caused by vibratory angioedema triggered by the physical pressure of blowing his nose.
Why it matters
Identifying this rare subtype of chronic inducible urticaria is crucial for effective treatment. By managing the patient's underlying nonallergic rhinitis, doctors were able to successfully reduce the frequency of the physical trigger mechanism.
A 36-year-old man was diagnosed with vibratory angioedema, a rare condition that accounted for his five episodes of swelling in 18 months. Medical testing confirmed his condition was not related to hereditary angioedema or C1-inhibitor deficiency.
The players
UCLA
This is a public research university in Los Angeles that operates a major medical center involved in patient care and clinical research.
Cedars-Sinai
This is a non-profit academic medical center in Los Angeles that conducts extensive medical research and provides specialized clinical services.
UC Irvine
This is a public research university that operates a comprehensive health system involved in clinical diagnostics and academic medical reporting.
The details
The patient experienced reddening and numbness in his upper lip within minutes of vigorous nose blowing due to pressure transmitted to soft tissues. Clinicians at Los Angeles-area medical centers prescribed fluticasone and azelastine nasal sprays to treat his nonallergic rhinitis and minimize the trigger.
Timeline
A report in 2015 documented similar cases involving tongue and throat swelling.
A systematic review of 83 patients with this condition was published in 2021.
The case report detailing the patient was published in Cureus in August 2025.
The Big Picture
This case report follows a pattern set by the 2021 systematic review of vibratory angioedema patients by documenting how specific physical stimuli cause rare immunological responses. It expands medical understanding by identifying a novel trigger mechanism previously misattributed to other conditions.
Patients experiencing unexplained swelling during daily activities should consult an allergist to rule out rare conditions like vibratory angioedema. Managing underlying triggers like rhinitis can significantly reduce the frequency of symptomatic episodes.
The takeaway
Vibratory angioedema is a rare condition that requires a specific diagnosis to prevent unnecessary treatment for allergies. Residents should be aware that unusual swelling linked to physical pressure may warrant a professional medical evaluation.
Further reading
For more information on similar conditions, visit the Allergies section.
Source note: This article includes information reported by Medical Daily.
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