The funny thing about that is that my colony seems to be really thriving right now and doing a great job getting ready for winter.
There is always hope... right up to the minute you go out and find no bees in the hive.
The thing about wax moths is that they are more a symtom than a cause. They are a symptom of a weak colony (though they certainly do weaken it further)... and you need to do more than just treat for the moths here, you also need to find out why your colony is weak and treat that problem too.
Homer, yes, waxmoth is a sign of weakness in a hive but you could also just have too much room in the hive for the amount of bees in that colony to 86 the waxmoths, make sure you don't have too much space, and condense the hive by removing any extra, unnecessary space such as extra boxes that the bees are not covering.
You will need to go through this hive, condense the boxes and cut out what really affected combs you have, the bees if condensed and strong will clean up the rest.
Do a search on Certan on this site and try and get some to put on your hive, also check for the queen, she may not be there anymore, if you have enough bees and can get a new queen, if you need to, do so.
If no queen and not a lot of bees, combine the bees with another hive, if you have one.