@Sharkbait19
I am going to be candid, and I hope you won't be offended...
You appear to be shopping for the answers you want to hear. It seems to me that you are hoping that this is something which will go away on its own, or, perhaps something that will go away with the quick addition of a bottled solution.
There are no short cuts.
In the end, you have disease in your tank. And if it were my tank, I would not settle for anything short of eradicating the disease.
My advice is to put the breaks on and stop thinking about bottled solutions and future stocking plans. In my view, you don't need to get it under control, you need to ELIMINATE the disease. And there are things to try before running out and buying a bottled solution.
I am sure your LFS can provide you with something, but, remember that they are in business to make money and are happy to sell you something every time you walk in the door.
To begin, I have treated for ICH only once. And I was fortunate because it was a new inhabitant which was in quarantine when ICH reared its ugly head.
To treat, I simply did a fresh water dip for a few minutes, once per day AND gradually dropping down to a salinity in the 16-20 PPT range. I monitored until the fish didn't display ICH for 14 days and then gradually brought the salinity back up to 35ppt.
Then reset the QT clock and waited 90 days.
It was only after treatment and 90 days symptom free that I added it to my main tank.
And yes, there are ways to manage ICH. But wouldn't you rather get rid of the flu instead of managing it all the time? You'd be unhappy. So will your fish!