The symptoms include facial pain, nasal obstruction, nasal discharge, and diminished sense of smell. Additionally, occurs fever, bad breath, fatigue and cough.

     Acute Sinusitis can last for four weeks or more. It may be present when the patient has two or more symptoms or the presence of thick, green or yellow nasal discharge. Acute bacterial infection might be present when the symptoms worsen after five days, persist after 10 days, or the severity of symptoms is out of proportion to those normally associated with a viral infection.

     Victims of chronic sinusitis may have the following symptoms for 12 weeks or more. Facial pain, tenderness on pressure, facial congestion or sense of fullness, nasal obstruction or blockage, Thick nasal discharge, discoloured post-nasal drainage, pus in the nasal cavity, and at times, fever. They may also have headache, bad breath, and fatigue.

      Factors which may predispose to developing sinusitis include allergies, structural problems such as a deviated nasal septum ,smoking; nasal polyps, prior bouts of sinusitis as each instance may result in increased inflammation of the nasal or sinus mucosa and potentially further narrow the openings.

Establishment of chronicity
     As a first set of action is infiltration of submucous tissue with serum and its mesh with leukocytes. Dilated capillaries, thickened and red mucous membrane due to oedema and engorgement of sub epithelial structures without defect in the epithelium. Leucocytes escape through epithelial covering of mucosa and mixes up with bacteria, epithelial debris, mucous and blood. Thin watery secretion follows thick and tenacious secretion. Neither resolution by absorption, inflammatory changes of exudates and cessation of the leukocyte discharge in 10 to 14 days or inflammation changes congestive to purulent with increase in leucocytes. It leads to permanent changes and chronicity is established.