Has anyone been treated for long term chronic sinusitis in Sofia and can you recommend me a clinic/person? I'm looking for physical, thermal based therapy. Antibiotics don't work neither does diet and nasal washes etc. I've tried everything. The only thing that has worked in the past was a thermal based treatment carried out in Turkey when I was a child by a doctor couple from Bulgaria. I was relieved for more than 2 years. So I'm looking for something similar.