July 15, 2011 - 13:03 BST hellomagazine.com Kym Marsh reacts angrily when she was accused of going back to work too early Kym Marsh has defended her decision to leave her baby to return to work. She made her comments on Twitter after one user criticised her and fellow working mother Holly Willoughby. The Coronation Street star has three children - three-month-old Polly with Hollyoaks star Jamie Lomas and Emily, 13, and David 16, from a previous relationship. A user tweeted: "(Don't) know why celebs like @msm4rsh and @hollywills leave their babies for tv it's ridiculous." Kym retorted: "It's called working... or should we not be working when we have children?? How dare we provide for our kids! Idiot." She added: "Actually I DO need to work and I am NOT married. "I have bills just like everyone else, no work no income. "And my child was with my mother not a nanny not that it's your business!" The exchange on the social networking site came after the 35-year-old former pop star revealed she was filming an appearance on David Walliams' TV show Wall Of Fame. Kym said: "There are people who can't go to work and I have been on that side too but I won't be criticised cos I do. "I have lived on benefits too cos I couldn't get work that covered the cost of living with two small kids so I sympathise. "I cannot believe that in this day and age people still think mums should not work! "Claiming I don't NEED to work? What am I? Made of money? "I suppose I should stay home until I am broke again then should I?" She added: "Also why is it ok for dads to go out to work then? But not mums??? Sexism???"