The 26-year-old faced intense criticism from Coronation Street viewers after her return to the cobbles on Monday.
It was left to the actress and her co-star, Brooke Vincent, to take on the trolls by posting inspirational quotes on their social media.
Helen, who left the ITV soap in 2013, posted on her Instagram page a picture containing the quotation: "Integrity is everything."
The actress has faced intense criticism for her return
Brooke jumped to Helen's defence on Twitter
Rosie Webster's life in pictures
Tue, February 7, 2017
As Helen Flanagan returns to Coronation Street, we take a look at Rosie Webster's life in pictures.
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Coronation Street's Rosie Webster in pictures
The post was liked by Michelle Keegan and her friend, Brooke, who commented: "[Love] my girl".
Brooke, who plays Helen's on-screen sister Sophie, posted a message of support on Twitter, writing: "Don'y let anyone dull your sparkle."
However, despite the criticism, Helen's Corrie contract has been extended.
Helen has been accused of 'over-acting'
"We are thrilled to have Helen back and delighted that she is now going to become a more permanent fixture in Weatherfield," said series producer, Kate Oates.
She continued: "Rosie is a classic Coronation Street comedy character and we are looking forward to seeing more of her antics in the future."
Speaking of the contract, Helen said: "I am having so much fun being back here playing Rosie again. The writing is hilarious and I am delighted to be staying around."
Coronation Street continues tomorrow at 7:30pm on ITV.