The mum-of-one and bestselling author, 31, was forced to stop work last month as she was admitted into hospital for throat surgery.
Updating her fans before and after enduring the painful procedures, Katie has now told us she's returned to work and happy to be back!
Posting a photo from the set of C4's Bodyshockers, presenter Katie wrote: "Behind the scenes with @toby_salvietto talking about food as usual!"
In the snap, Katie looks her usual gorgeous self as she smiles alongside make-up artist Toby.
She added: "My first day back filming BodyShockers after 3 weeks off sick! Great to be back on set with the crew."
Understandably, Katie's loyal followers were quick to compliment her.
One wrote: "You are such an inspiration Katie. Thank you. You inspired me to tell my story too. What a role model."
Others called Katie "flawless" and "fierce" - and we have to agree!
Katie has had multiple surgeries since 2008 when an ex-boyfriend arranged for sulphuric acid to be thrown in her face.
In 2009, she chose to give up her anonymity in order to increase awareness about burn victims and has since campaigned tirelessly for the Katie Piper Foundation.
In September 2013, she announced that she was pregnant and gave birth to her first child Belle Elizabeth in March 2014.
In December, she announced her engagement to her partner James.
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