Zsa Zsa Gabor's husband is threatening legal action against his plastic surgeon after a cosmetic procedure left him with a badly swollen face.

Prince Frederic von Anhalt went under the knife for a mystery routine operation on Monday (09Jun14), but the surgery has caused the 70 year old's face to swell up so much, his eyes appear to be almost closed.

He released a photo to Tmz.com, saying, "They made me look like a monster!"

He is now demanding a surgeon fix what he insists was a botched operation - or face a lawsuit.