Oh man, well the foxface has black ich for sure... a freshwater dip to provide immediate relief, followed by prazipro or general cure dosed twice 5-7 days apart would be needed there.
But, the clown has brooklynella.
Treating both at the same time is going to be tricky, but it can be done.
All fish that share the tank will need treated for both, since parasites are transferable between tankmates. Both affected fish would benefit from a freshwater dip first:
Followed by a bath in Acriflavine. All of the fish in the tank should get the bath, as it is an important step in treating brook. Only the symptomatic fish need the freshwater dip, though. Ruby reef rally and API Fungus Cure are both good sources of acriflavine.
After this the fish should be transferred to a clean QT. Don’t use anything from your display to set it up, to try to avoid transferring brook to the QT.
Then, you’ll need to dose General Cure. This has both the praziquantel (for black ich) and metronidazole (for brook). You’ll also need Metroplex (just metronidazole) for in between, and for 14 days total.
So Day 1- General Cure
Day 3- Metro
Day 5- Metro
Day 7- General Cure
Day 9- Metro
Day 11- Metro
Day 13- Metro
Day 15- water change and carbon
You should do a small water change before each dose. This will also help manage ammonia during treatment.
We can help you through each step if needed. I know it can be overwhelming dealing with multiple parasites at once