This paper describes study of larynx microflora in patients with acute laryngtis and exacerbations of chronic laryngitis. Therapeutic algorithm based on bacteriologic examination data was developed reduce. New algorithm helps reduce sickness terms and to decrease prevalence of desease.123 patients of age from 18 to 60 were under observation: 43 patients with acute laryngitis and 80 patients with exacerbation of chronic laryngitis. 22 patients with acute laryngitis and 58 patients with

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... on of chronic laryngitis underwent etiotropic treatment with antibiotics. The group of comparison with acute laryngitis (21 patients) and chronic laryngitis (22 patients) received treatment according to the conventional scheme.Bacteriologic examination of larynx mucous, clinical study and functional voice test (time of maximum vowels phonation) before and after treatment were carried out.As a result of the research it was established that the most common causative agent of acute and chronic inflammatory larynx diseases is S. aureus as a mono culture or combined with other bacterial associations (S. аnhemolyticus, Str. viridans etc.).After the end of antibacterial therapy we found symptoms as hoarseness, irritation, dry laryngopharynx, hyperemia and swelling of larynx mucous reduced eather in new treatment group than controlled group. Time of maximum vowels phonation (in seconds) also increased significantly.Sickness terms after prescription of new treatment was shorter than in comparison groups: (10.9 ± 7.9) days for acute laryngitis and (12.6 ± 7.3) days for chronic laryngitis respectively. Health index was 20.8 and 19.5% respectively.