hello
I have a lump which feels like a blister behind my left ear. It is sore to touch but otherwise not painful, but I can tell it is there IYSWIM. It is not blister shaped and from feeling seems to be thin and around an inch long and it tracks the shape of my ear.
Any ideas what it could be?? Dr google tells me it?s either a sebaceous cyst (too scared to google more for fear of pictures) or swollen lymph gland