Acute Sinusitis Treatment in Gangnam, Seoul
Medically reviewed by Dr. Kim Yoo Suk, MD · Board-certified otolaryngologist · Former professor, Yonsei & Ajou University · Consultations in English
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Acute sinusitis is a sudden infection or inflammation of the sinuses lasting less than four weeks, usually following a cold. Most cases are viral and improve with saline rinses, steroid sprays and pain relief. Antibiotics are considered when symptoms exceed 10 days, worsen after initial improvement, or begin with high fever and severe facial pain.
What is acute sinusitis?
Acute sinusitis (acute rhinosinusitis) is short-term inflammation of the sinus lining that lasts under four weeks. It most often develops when a viral upper respiratory infection such as the common cold causes swelling that blocks sinus drainage. Trapped mucus can then become secondarily infected by bacteria.
Symptoms
- Blocked nose and thick yellow or green discharge
- Pain or pressure over the cheeks, forehead or between the eyes
- Pain that worsens when bending forward
- Upper tooth ache on one side
- Reduced smell, cough and fever
Causes
Viral infection is the most common trigger. Bacterial sinusitis is less frequent and is suspected when symptoms persist beyond 10 days, worsen again after initially improving (so-called "double worsening"), or start with fever above 39°C and purulent discharge for several days. Allergies, a narrow nasal anatomy and dental infections can increase the risk; a tooth-related source is discussed on our dental implant sinusitis page.
How it is diagnosed at our Gangnam clinic
Diagnosis is mainly clinical. Dr. Kim examines the nose with nasal endoscopy, which can show pus draining from the sinus openings and allows a sample to be taken if needed. Imaging is not required for routine cases, but a sinus CT scan is used when complications are suspected, symptoms are one-sided and persistent, or episodes keep recurring. During flu season, a flu rapid test may help when influenza is possible.
Treatment options
- Saline irrigation to wash out mucus and reduce congestion
- Intranasal corticosteroids to shrink swollen mucosa
- Pain and fever relief with acetaminophen or anti-inflammatory medicine
- Short-term decongestants for no more than a few days
- Antibiotics only when bacterial infection is likely
Most uncomplicated cases improve within 7 to 10 days. Rest, adequate fluids, steam inhalation and sleeping with the head slightly raised can make the nights more comfortable. Avoid flying or diving with a badly blocked nose if possible, because pressure changes can be painful.
Endoscopic suction of thick secretions in the clinic can give quick relief. Surgery is not used for a single acute episode, but endoscopic sinus surgery may be considered for recurrent acute sinusitis or complications. Some patients also choose supportive care such as a cold and flu IV for fluids when unwell; this does not treat the infection itself.
When to see an ENT
See a doctor if symptoms last more than 10 days, are severe, or return several times a year. Go to an emergency department immediately for eyelid swelling or redness, bulging eye, double vision, severe headache, stiff neck, confusion or high fever that does not respond to medication. These may indicate orbital or intracranial spread.
Seeing Dr. Kim in English
Dr. Kim Yoo Suk, a former Yonsei and Ajou professor specializing in nose and sinus disease, sees acute sinusitis patients in English and avoids unnecessary antibiotics. Walk-ins are welcome during opening hours; check our hours and directions before you come.
Frequently asked questions
Is acute sinusitis contagious?
The sinus inflammation itself is not contagious, but the cold virus that often triggers it can spread to others. Hand washing, covering coughs and wearing a mask when unwell help protect people around you, particularly in the first few days of a cold when viral shedding is highest.
Do I need antibiotics for sinusitis?
Most acute sinusitis is viral and resolves without antibiotics. They are recommended when symptoms persist beyond 10 days, worsen after improving, or begin very severely. Dr. Kim decides based on your examination and history rather than discharge color alone.
Can I get an English medical certificate for work or school?
Yes. Gangnam Yonsei ENT can issue an English medical certificate after your consultation. Ask at reception when you register so it can be prepared during your visit. Receipts and copies of medical records are also available if you need them for an insurance claim.
Your doctor
Dr. Kim Yoo Suk, MD
Board-certified otolaryngologist (ENT). Former clinical assistant professor at Yonsei University and assistant professor at Ajou University School of Medicine. Nose & sinus subspecialist who treats all ear, nose and throat conditions.
Consultations in English. Guide for international patients →
Visit us in Gangnam
2F HS Tower, 703 Seolleung-ro, Gangnam-gu, Seoul
Gangnam-gu Office Station (Line 7 / Suin-Bundang), Exit 3-1
Mon, Tue, Thu, Fri 9:00–19:00
Wed 14:00–19:00 · Sat 9:00–14:00
Closed Sundays & public holidays
This page is general medical information written and reviewed by an ENT specialist. It is not a diagnosis. Symptoms differ between people — please see a doctor for an examination. In an emergency in Korea, call 119.