Okay, ich looks like somebody salted your fish, so that's not it.
Your tank is developing a population of beneficial bacteria that will consume the ammonia from your fish's waste and convert it to less harmful substances. Now is the most dangerous time -- before the bacteria have multiplied sufficiently -- and you must be diligent about monitoring your water conditions.
Here's what you need to do:
First, test for ammonia, nitrite, and nitrate. You most likely have at least some ammonia in your tank by now. It can rise very quickly during the beginning phase of the cycling process, so you should test daily for a while. Ammonia will rise and peak; then once it falls to zero and stays there, nitrites will do the same. Once it stabilizes at zero, you'll begin to have readings for nitrate, at which point your tank will be cycled.
Ammonia and nitrite are both toxic to fish. Whenever the tests for them read 1.0 or above, you need to do a 50% water change, being sure to match the temperature and use dechlorinator (water conditioner). You may end up doing water changes as often as daily for a while. It may take up to a couple of months to complete a fish-in cycle.
The best way to safeguard your fish's health is to keep the water in tiptop shape. It will allow your fish to heal much more easily. Also, feed lightly, only as much as your fish can consume in a couple of minutes, and only every other day until your tank is cycled. Also, if you don't have anything with which to vacuum your tank, pick up a tank vacuum. They're pretty cheap. You can vacuum a portion of your tank each time you do a water change.
one more thing -- if one day your water suddenly gets whitish cloudy, like somebody spilled milk in it, that's a population explosion of the bacteria. It's a good thing, and it will clear up in a week or so.