Hey all, I'm posting for my neighbor, who asked me to have a look at her chicken. I'm attaching pictures of the growth/swelling on her face. This is a 2-3 year old bantam cochin hen. The ailment is only affecting one side of her face, and i'm told she's eating, drinking, and otherwise acting fine. I thought it could be an abscess or possibly a sinus infection but wanted some other, more knowledgable opinions and treatment suggestions. Thanks!