| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.2 / 5 | Warsaw, Poland | 47+ years | Endoscopic Sinus Surgery, Nasal Endoscopy | — | — | — | ||
| #2 | 4.5 / 5 | Warsaw, Poland | 20+ years20,000+ treatments | FESS | Chronic sinusitis not improved by medication | Performs FESS endoscopically through nostrils – no facial incisions or scars. ISAPS-accredited clinic in Warsaw, rated 4.5/5 from 80 reviews. | Given to the doctor International Society of Aesthetic Plastic Surgery (ISAPS) Сertificate |