The singer told fans about the painful accident in a message shared via the group's Twitter page.
Perrie revealed how she accidentally burnt herself when the light in her boiler blew up.
The X Factor star said she is suffering from blisters, adding that there is "not one hair left on my hand or arm".
Her full message read: "So today I had an accident… and by accident I mean I accidentally set myself on fire. The pilot light on my boiler blew up and it set my arm/hand on fire. Not a pleasant experience.
"I'm in pain, full of blisters, there's not one hair left on my hand or arm, and it burned the sleeve of my favourite jumper. F**king nightmare. A little advice from from me… STAY AWAY FROM FIRE."
Perrie showed off the extent of her injuries in two photos and received tons well-wishes from fans.
Perrie's accident comes just one day after she and bandmates - Jesy Nelson, Jade Thirlwall and Leigh-Anne Pinnock - got on stage for a performance of 'Black Magic' at the Brit Awards.
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