A 10-year-old schoolgirl from the Welwyn Hatfield area has been left with severe burns in need of plastic surgery after carrying out a dangerous TikTok challenge.

The deodorant test of endurance involves spraying for as long as possible onto a person’s bare skin, with the cold apparently leaving apparently “light” burn marks.

The damage does not come from the deodorant itself, but the aerosol spray, which cools quickly on the skin and effectively produces frostbite.

A study by the American Academy of Pediatrics found that the skin’s temperature can drop by more than 60°C if you spray deodorant 5cm from the skin for just 15 seconds.

In this latest case, the Welwyn Hatfield girl sprayed herself for 10 seconds and was left with large dark brown burn spots on both hands which might require a skin graft.

The 10-year-old then spent a morning in hospital with her family and was told she would be required to see a plastic surgeon within a week’s time.

She currently has both her hands bandaged and was warned that the burns might not heal for two years.

Welwyn Hatfield Times: The 10-year-old had been in the hospital with her family for a whole morning and was told she would be required to see a plastic surgeon within a week’s time.The 10-year-old had been in the hospital with her family for a whole morning and was told she would be required to see a plastic surgeon within a week’s time. (Image: Facebook)

The girl's mother has posted about the incident on Facebook in order to warn others about TikTok trends which might cause harm to children.

She has asked the WHT not to identify her daughter but said: “I’m so upset for her, she is one of the brightest, most polite and sensible little girls, I never thought she would let that slip.

"She’s now got months of healing to get through and will miss out on so much over the next couple of months because of a relapse of sense."

Parents whose children have taken part in the challenge are warned to go immediately to their nearest A&E department if they have severe symptoms of frostbite, or to call NHS 111 for advice on minor injuries.