pimple looking abscess on chicken’s neck

[PippinTheChicken]

My chick has something like this.
My thread: https://www.backyardchickens.com/threads/red-lump-on-chicks-neck-please-help.1458699/#post-24290809



Another thread: https://www.backyardchickens.com/threads/lump-on-back-of-chicks-neck.1084126/