| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.8 / 5 (16) | Seoul, Republic of Korea | — | 1,000+ treatments | — | — | — | Korean Institute for Healthcare Accreditation | |
| #2 | — / 5 | Incheon, Republic of Korea | 76+ years | Functional endoscopic sinus surgery | Chronic sinusitis or allergic rhinitis | US fellowship-trained ENT specialists perform FESS for chronic sinusitis, a key cause of congestion. KOIHA-accredited hospital with dedicated rhinology focus. | Advanced Regenerative Medicine Implementation Institution (Ministry of Health and Welfare, Republic of Korea), Korean Institute for Healthcare Accreditation |