Regarding the use of chlorhexidine, which of the following is true?

A. Chlorhexidine rinses (0.12%) aid in prevention of drug-associated gingival enlargement.
B. Chlorhexidine when applied to the eyes will reduce keratitis.” to “B. Chlorhexidine, when applied to the eyes, will reduce keratitis.
C. Chlorhexidine reduces risk of deafness when applied to the ear canal prior to surgery.
D. Chlorhexidine leads to reduction of suture strength when applied to wounds.
E. The efficacy of chlorhexidine is reduced when combined with isopropyl alcohol.
F. Serratia colonization is impossible to occur in chlorhexidine container.

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