I would not use the iodine but one time. It burns, cauterizes the wound,
and helps the wound to begin to heal. I would continue the use of
antibiotic ointment and wait. Wounds don't heal immediately, they take
time. Keep the fish in the most pristine water you can get, zeros on
ammonia, nitrite, and wait.
--
RichToyBox
http://www.geocities.com/richtoybox/pondintro.html

"jugglingeek" wrote in message
oups.com...
I came back from holiday on the 19th of July to find my 30cm asagi koi
had an infected sore in it's side near the tail. on the 23rd the sore
was cleaned, swabed with iodine and given anti-biotic injection. Fish
has been treated with idodine again on 26th, 29th, 2th August and today
(7th).

The fish seems no better and no worse. The water temperature is between
15 and 19 degrees. What should I do. I am worried about the other fish
been infected