Imogen Thomas has been forced to return to hospital with 8-month-old Siera.

And, last night, the Big Brother star shared an emotional snap of herself with her poorly little girl.

In the shot, Imogen can be seen staring sadly into the camera as she cradles her baby in her arms.

Little Siera, sound asleep, is hooked up to several hospital machines.

Imogen captioned the image: “A night in hospital for my Siera. Broncolitis.

“My poor girl needed oxygen. She's fast asleep now!”

Imogen also made sure to praise the National Health Service for all their hard work in caring for her baby girl.

She added: “Can't help but worry but she's in the best hands - NHS. So amazing.

“[They] Work so hard - I'm so happy with the care they always give.”

If Imogen was searching for support in her fans, she definitely found it; the model was soon flooded with messages and well wishes.

One wrote: “Aww my boy had this at 4 weeks old. It's scary, but she'll be fine in a few days,”

Another added: “At least she is in the best place. Make sure you get some rest too @imogen_thomas”

“Sending get well wishes to your little lady!” commented one fan.

And another added kindly: “May Allah heal her and provide her speed recovery.”

Poor little Siera was also taken to hospital in May, when her mother was forced to seek emergency medical attention after days of not knowing why she had fallen sick.

At the time, Imogen posted a video of the baby on Instagram, writing: “My poor baby. She’s been sick all day ... Really hope she’s better a little by tomorrow.

“I won’t be able to sleep tonight checking her all the time #worriedmammy”

Imogen and her Australian boyfriend, Adam Horsley, welcomed Siera into the world in November, just a month before she lost her dad to cancer. They also have another gorgeous daughter, two year old Ariana.

A few hours later, Imogen informed her fans that she was back at home with Siera and she thanked the staff at Chelsea and Westminster hospital for all of their hard work and support. She had nothing but good things to say about the NHS and was more than happy to publically announce her support for all the doctors and nurses.

Imogen shot to fame in 2006 after appearing on the seventh series of popular reality TV show, Big Brother.

We hope baby Siera gets well soon.