Ozzy Osbourne's daughter Kelly has been ordered not to speak for two weeks after falling ill with throat problems.

The Tv star took to Instagram.com on Thursday (21Nov13) to tell fans that she was diagnosed with pre vocal nodules and has been ordered to stop using her voice for 14 days.

Posting a graphic picture of her swollen throat on the site, she writes, "Warning this is disgusting! According to my Dr I have pre vocal nodules and am on vocal rest for the next 2 weeks! That's worse than prison for me!"

It's the latest health setback for Osbourne, who was hospitalised earlier this year (13) following a seizure.