A method of selectively promoting a desired oral microbiota to treat an inflammation condition associated with an allergic reaction in a subject in need of such treatment including providing a composition including: at least one live bacterial population including lactic acid producing bacteria and lactic acid fermenting bacteria； and, an amino acid containing ingredient comprising L-arginine； at least partially removing a biofilm within an oral cavity of the subject； wherein the composition is contained within the oral cavity of the subject in an effective amount to selectively promote an increased concentration of selected oral microbiota comprising the lactic acid producing bacteria and the lactic acid fermenting bacteria to thereby treat the inflammation condition.
