why does my chicken STILL have fowl pox?!!!!?

[chickenmama109]

so a couple months ago my chickens got fowl poxs but the still have them i can still see little black bumps on there comb i dont know why they still have them they are 8 months old all tips are welcome and thanks to all

 

[Eggcessive]

Do younhave any pictures that show the pox scabs?

 

[chickenmama109]

i can go get some today

 

[chickenmama109]

This is my rir