The fly spray we had problems with was oil based, it wasn't the citronella but the oil carrier liquid that was the problem. The areas that reacted got a heavier dose when applied and got the most sun, not necessarily the most delicate skin.
I haven't used hibitane for a while, it wasn't available in Canada for a bit, but I do think the ointment is effective against bacteria and fungus (so both of our ideas are covered - where's the smiley on this site?).
I think hibitane soap is chlorohexidene, but again haven't used it for awhile.
Of coarse we are both diagnosing off a brief description and a photo based on our personal experiences in possibly extremely different parts of the world so we could both be right or wrong