Chlorhexidine solution. Indications: Oral hygiene, plaque inhibition, antiseptic mouthwash for sore throats, mouth sores etc. Chlorhexidine mouthwash may be useful as an adjunct to other hygyiene measures in case of oral infection or when toothbrushing is not possible. Dose: Rinse the mouth with 10 ml for about 1 minute twice daily.