Sinus related query. Swell right face.

I have sharp facial pain on right side and behind eye from 2015-2016. I consulted ENT at that time and he prescribed me some medicines for throat infection i had that time. I wasn't aware that there is a medical condition called sinusitis until 2021 dec. X-ray pns indicates right side ethmoid sinusitis. CT-Scan confirmed right side ethmoid sinusitus with nasal deviated septum. I consulted senior most retired ENT doc. nearby and he gave some antibiotics, nasal spray, gargle liquid. No relief for a week and he prescribed me for another week and then for another week. 21 days not a single % relief. I changed doc. and he asked for a endoscopy of nasal and reports claim dilated vessels in posterior choana region. DNS to right . Rest is WNL. He told everything is normal and sinusitis is very mild nothing to worry and he gave medicines for 15 days. It didn't worked for me. I can't sleep properly bcoz of headache also i had history of extremely dry throat and infection, pain,Swell right face.