Ick attack?

Thanks Colin. I use according to the dose as you suggested earlier.

She seems to be quite sensitive now, so I am still worry about moving her to another tank. Will give it a try in these one or 2 days

The skin peel off photo is the one with a heater on, the fish is at the left bottom corner, you can see a bit peel off his head. Sorry this is the best I can take. (image0.jpeg), This doesnt seem to be peeling off often, just 1 or 2 in weeks.

For the fish with white patch at her tail, I just managed to take a cleaner one.