The 28-year-old beauty was left injured on Sunday (05Jan14) when her pooch accidentally hit her in the face when she tried to hug him.
Uploading a snap of her badly swollen lips on Instagram, she writes, "Don't surprise hug your dogs... It's getting bigger I look diseased."
When concerned fans reached out to ask if she had been bitten by her pet, Teigen replied, "Not a bite. Just a dog headbutt. He feels terrible and will not leave my side."
She then posted a picture of her sad looking bulldog resting his head on her lap.