Welcome to HCM.
Your symptoms is suggestive of sinusitis
If it is recurrent than go for x-ray,complete blood count
.Watch for eosinophilia
Take complete course of amoxy/clavulinic 625 for about 7 to 10 days.
Also take NSAID with decongestant.
Seam inhalation will be helpful.
After complete cure go for breathing exercise
,yoga.Avoid triggering factor if it is allergic in pattern.
Consult you ENT for better medical management.