Jillian Barberie -- Dog Bites Face ... 10 Stitches To Heal Bloody Wound

Ex-NFL on FOX star Jillian Barberie lost a chunk of her lip this weekend -- when she was bit in the mouth by a Cocker Spaniel ... and needed 10 stitches to close the gash.

It all went down Saturday night ... Barberie -- a big time dog lover -- was playing with her friend's pooch ... when it snapped and chewed down on her face.

Barberie went straight to the hospital and dialed up a plastic surgeon -- who sewed her up with 10 stitches around 4 AM Sunday morning.

"Already healing nicely," Barberie said ... "Stitches coming out Friday."

As for the dog, Barberie says no hard feelings ... and noted that the owners even sent her flowers.