Hi, I'm so sorry for your troubles.
I do see what looks like a nasty case of pox blisters, but it also looks like there's also a secondary issue going on, some other infection.
As a precaution, I warn people about mycoplasma gallisepticum (MG). Especially in swollen eyes.
Unfortunately the only way to know for sure what you are dealing with, and to determine or confirm MG, is through testing.
But I would DEFINITELY separate the birds from your main flock and watch them very closely.
If it is also MG, it IS highly contagious. Birds that survive MG are carriers for life with low fertility, laying, and hatch rates.
I would look into it and at pics of it online. If you think that is whatnis going on in addition to fowl pox, I would consider culling.