1 May 2026Drugs for external use and antiseptics

Chlorhexidine 0.2% Mouthwash: Use and Precautions

Chlorhexidine mouthwash guidance for antisepsis of noma mouth ulcers, with local-application instructions and key precautions.

Also searched as

CHX 0.2% mouthwash

Source reviewed

source date listed on the source page

Guide category

Drugs for external use and antiseptics

Safety boundary

Educational medicine information, not personal medical advice.

Kenza Health Hub presents this medicine page as structured health education. Check dose, route, interactions, pregnancy or breast-feeding considerations, and local protocol with a qualified clinician or pharmacist. Read our medical editorial policy.

This guide page is for structured reference only and does not replace a clinician, pharmacist, or emergency review. Dose choice, route choice, interactions, and safety decisions still need professional judgment.

Therapeutic action

Antiseptic.

Indications

Antisepsis of noma mouth ulcers.

Forms and strengths

0.2% mouthwash solution of chlorhexidine digluconate, ready to use.

Dose

Child: one application 4 to 6 times daily to oral mucosa, using a clean gauze swab wrapped around a tongue depressor.

Duration

According to clinical response.

Contra-indications, adverse effects, precautions

Do not swallow.
Do not bring into contact with eyes (risk of corneal damage) or middle ear (risk of deafness if ear drum is perforated).
May cause reversible brown discoloration of the tongue and teeth, taste disturbances, and rarely allergic reactions.

Source

MSF Essential drugs practical guidelines (January 2026)

This page combines source-derived medicine reference sections with Kenza editorial context, while leaving out the Storage and Remarks sections from the source batch.

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