Lump between ear and eye of 8week old speckled sussex
It could be a several different things, respiratory/sinus infection, abscess, mites/lice in the ear, infection from insect bite or pecking.
Has she shown any signs of coughing, sneezing, runny nose?
Have you checked in the ear to see if there may be lice/mites?
Insect bites can cause swelling/infection - mosquitoes=fowl pox.
Any other "lumps" in the mouth?
Is it only on one side or both?