Hmmm maybe a "cone of shame" like they put on dogs who are "eating" themselves? Have you checked to see if she has some parasitic issue there like lice?
The OP said they have Katahdin sheep so I'm wondering if what they are calling "wool" is a bad shedding season. Not that it matters but I have never seen a hair sheep do that.
No stress
Grain hay and plenty of water
She’s eating good and acting normal - just end of pregnancy kinda cranky. She lost mucus plug Sunday.
It’s been cold (-45* wind chills) here but they have a barn with stall mats and bedding and heated water bucket.
She was cranky and pulling wool from other sheep so Sunday I put her in the stall next to everyone else alone - but again she’s content. The pulling seems to happen w discomfort from babies. I just didn’t know if it was typical of late pregnancy. She is not showing any signs at all of being sick.