It's a fancy form honey gourami, and many Gouramis are "ich magnets". So I would continue the treatment, as odds are high that's our parasite.
The Ich parasite creates a protective cyst while it feeds and reproduces, and the meds can only get to the creatures once the cyst bursts and they all barrel out looking for a host. Depending on temperature, the cyst can last a couple of days, so you are the normal range/progression.
I've never used that medication, but it has good active ingredients. It's hard to be 100% sure from a photo like that, and there are other things that cause small cysts. But especially if that's a newly arrived fish, it's better to be safe than sorry.
Some will advise raising the temperature to speed up the life cycle of the parasite, but I find if you get it early, that isn't necessary. Gouramis generally like their water warm anyway. I find that if you get to Ich really quickly with the right meds, it is no more of a problem than a common cold would be for us. Let it spread though, and it can be fatal.