There are fresh warnings over the eraser challenge which is gaining popularity on social media, according to US media outlets.
Several students from a school in North Carolina have been hurt from the challenge, which was also known as the ABC game.
In the game, kids dare each other to rub an eraser on their skin while reciting the alphabet. The most injured person wins.
A US high school has warned parents to be on the lookout for burn marks because the game is back in fashion with students.
Photos of the results have crossed the globe on social media accounts.
Alongside bragging posts on social media accounts, some children have warned others about the dangers of the game.