i wouldnt do it personally unless it was an extreme emergency.
i find that Iodine
and silver have a lot of the same qualities. if you are going to do iodine, just stop the CS and wait a week. after you are done with Iodine
and settle on an amount for maintenence, then you can revisit the CS.
using CS externally is fine. it has many different uses, but it is unbeatable for burns, imo.