This word may have its roots in the GreekKoryza, which is likely to be compounded from "kara" and "zeein". which are the noun for head and the verb, to boil. Coryza would therefore be a boiling over of the head. According to another source, coryza was an ancient Greek word denoting a fool. According to physician Andrew Wylie, "we use the term for a cold in the head, but the two are really synonymous. The ancient Romans advised their patients to clean their nostrils and thereby sharpen their wits."
Treatment of coryza depends on etiology. Coryza from any allergic causes usually gets relieved if contact with the allergen (dust, pollen, cold wind,etc.) is avoided. Nasal sprays, antihistamines, decongestants are beneficial. However, if it is due to any virus it usually take 3–7 days to improve. Symptomatic treatment can be obtained from saline nasal irrigation, nasal sprays, decongestants. But antihistamines are of little value. If in the rare event coryza is due to bacterial or fungal infections, then appropriate antimicrobial therapy may be required in addition to the symptomatic treatment.
^Kempe,C. H. Current Pediatric Diagnosis & Treatment. Appleton & Lange, 1987.
^Wylie, A, (1927). "Rhinology and laryngology in literature and Folk-Lore.". The Journal of Laryngology & Otology42 (2): 81–87. doi:10.1017/S0022215100029959.