It kind of sounds like you have ich and fungus, but the white could just be extra slime coat.
You can turn the temp up to 86* for 10 days, and it should get rid of the ich. Turn the temp up about 2* every hour. It will look worse before it looks better. Make sure you keep the temp up for the whole ten days, to kill all the ich, since you can only kill it in it's free swimming stage.