fishboy i wish i had an answer for you !! i dont ever have these issues i guess im lucky ! just had a kole tang with ick so i bought two more cleaners and its gone now
somethings not right somewhere in your set up !! did ya add a new fish in that two weeks?? imo
i think people try to dose and fix what they think is wrong and cause more undue stress on their animals ! like the first time they see a fish scratch the freak out !! i dont and things end up ok for me
i lets things ride out before any treatment of any sort and things either clear up or wasnt anything from the get go !! not saying thats what you should do cause with out seeing your set up first hand and or how you maintain your tanks it could be trouble ! mabe im lucky cause i really only get my fish for the most part from one store !