Kelly Osbourne is in ''good spirits'' following her health scare last week.

The 'Fashion Police' star was rushed to hospital after suffering a fit on the set of the E! show and while doctors haven't discovered what is wrong with her, she is recovering and is excited to get back to work.

Her representative told E! News: ''Kelly is still in the hospital under observation as a precautionary measure. She is in good spirits and looking forward to getting back to her busy schedule.''

Kelly had a 30 second seizure while filming the show last week and was helped by a medical emergency worker who was in the audience and rushed to her aid. The star was then taken to Cedars-Sinai hospital in Los Angeles and medics are said to be undertaking tests to establish whether she is suffering from epilepsy.

However, her representative insisted: ''There is absolutely no confirmed diagnosis regarding Kelly's condition at this time. She is under a doctor's care and they are continuing to run tests. Kelly is fine and thanks everyone for their continued support.''

The 28-year-old TV star previously thanked fans for their support following the scary incident, writing on Twitter: ''Thank U all 4 UR beautiful well wishes yes I did have a seizure they are just trying to figure out why? (sic)''