Sinus infection lasting for months or years is called chronic sinusitis.Majority of the cases of acute sinusitis occurs due to failure of the acute infection to resolve.Acute infection of the sinuses lead to destruction of the normal ciliated epithelium of the sinuses[ciliated epithelium is a special type of lining epithelium formed of a lining of cells,which possesses hair like structures called cilia,these structures help in gradual...
