Sinusitis
Sinusitis is an inflammation of the sinuses, which occurs due to allergy or viral infections, bacterial or fungal. Sinusitis can occur in one of the four existing sinus (maksilaris, etmoidalis, frontal or sfenoidalis). The cause of acute sinusitis: • Viral infections. Acute sinusitis can occur after a viral infection, in the upper respiratory tract (eg [...]
