i should also mention that as long as it is not too out of hand, ich is not all that detrimental to the fishes health. if you lose any fish in the next few days my money would be on the ammonia. im telling you this so you dont worry too much about getting it all done right away. this will take some time.
ich attack can work fine, we used it in the store a lot on the tetra tanks with fine results, but other times it didn't seem to work at all, so you'll just have to see how that goes. if you do have to eventually use the rid-ick out of the hundreds of times i have treated ick this is my favorite and i used it in my home tanks when i introduced an outbreak to my tank from an online seller. the tank was a planted tank with cherry shrimp and endlers actively breeding throughout the process, i think i went treated for 21 days. water changes are important when using copper treatments though, so if that's a problem then the ick attack is a good choice to try it will basically naturally breakdown in your water.
i would also like to stress again that salt can be harmful when used on fish that don't tolerate it well. in small doses it wont do a lot of harm, but then again, it wont treat anything either, and increasing the temperature is a give and take, i havent used this method too much personally, but i have observed it several times both in store and via costumer experience and its basically lowering the fishes immune system as your trying to fight off one disease. usually by the time the ick is gone the fish have already been taken by a bacterial outbreak. yes, i have heard of customers using this method with great results, but those fish were in very good condition.
my suggestion is to pick one thing, the ich attack and treat with only that, as far as all else is concerned pamper your fish as much as you can. id lower the temp, if for no other reason then to allow more dissolved oxygen in the water, and definitely work on that ammonia/nitrite.