Morning all!
The flake is a good way for long term. You can keep doing it weekly or every few days and overtime see some nice health flesh start to develop.
If you have a torch that is having active recession and needs immediate care, then that's when I use a long bath of restore and a few other things depending on if it's a bacterial infection or not.
When eating flakes or other foods, there is a little amount that gets ingested, and sometimes the corals don't even ingest it all.
That's why a long bath overnight or 12 hours is really helpful.
It insures that the coral takes in the meds throughout the whole process and gets a good dose.