Sinusitis has become a popular and much-abused diagnosis, one which is often carelessly made to explain a variety of totally unrelated complaints. Many nasal disturbances caused by allergies, as well as headaches of systemic, emotional, or neurogenic origin, are frequently attributed to sinusitis. It is a common experience to encounter patients who have made their own diagnosis and instituted their own therapy based upon information gained from commercial promotion. Abuses in therapy arise not only from improper diagnosis but also from the use of improper medications, from overtreatment, and from the unnecessary use of antibiotic agents, as well as from the use of preparations which impair the protective functions of the nasal mucosa. Proper therapy in sinusitis implies accurate diagnosis and the use of drugs and techniques which have a sound physiological basis.
The maxillary and ethmoidal sinuses are present at birth. The frontal and sphenoid sinuses begin their development