Just have to let it ride until you get the fish out of copper. It probably will not improve in copper as it is a heavy immunosuppressant. The thing is you have to finish copper first.
I wouldn't add any other meds just complete the regiment you are on.
I honestly wouldn't at this point. I'd give some time to recover, keep feeding and observing and finish out the copper treatment and see how she does. If new symptoms of flukes develop (scratching/flashing, heavy breathing, yawning, head shaking, etc) maybe re-evaluate. But, you really need to keep the stress as minimal as possible.
Once copper is completed and if she seems to be healing otherwise, I might do two general cure doses 5-7 days apart as a precaution. But, I think the velvet and infection take first priority right now.
Okay.. Sounds like a plan.. I have not seen her scratch or rub herself against anything.. However, I am seeing symptoms of some head shaking every now and then and I think I've seen her yawn as well..but my wife says she's seen her "cough" if that makes sence? Could all those symptoms be due to velvet as well? Since my wife and I did not see anything fall off of her during the first FW dip we gave her 9 days ago.. (this is my wife favorite fish and she picked her out... she is such a beautiful fat fish... would hate to loose her )
There is some good news though.. she still goes out and swims in the open and she is still eating pretty well... she slurps down frozen mysis like spaghetti