Did they get picked on by other birds when they had the pox, or thereafter? If so, you're going to have to separate them until healed. You can apply neosporin to the effected areas as needed.
I recommend that you take a look inside the ear canal for infection, it appears swollen in the pic. I dont know if it's swollen from pecking or if there's an ear infection. Let us know what you see inside the ear canal.
I vaccinated for fowl pox when they were young chicks to prevent the disease and this one was getting picked on so I separated it.I have all kinds of medication I am trying and will see if it pulls through.I just wonder if I should keep his scalp dry and use iodine or keep using a product called Chixx for pecking soars,fowl pox bumble foot ,ect.?