Dentists say the lollies contain high levels of acid.

A 4-year-old girl in Melbourne, Australia burned a hole in her tongue after eating sour sweets. Willow Wright's mum is sharing her daughter's ordeal to raise awareness about the dangerous sweets. It is believed Willow suffered a chemical burn on her tongue after consuming 10 of the popular Warheads lollies. The lollies caused a chemical burn that tore a layer of skin off the young girl's tongue. "I burst into tears because I was really worried," her mum Kirsty told 9News in Australia. Her mum admitted she's never seen anything like it before. "I just wanted to make aware to parents how dangerous these lollies are," she said. The lollies Willow ate contain high levels of acid. Children must be 4-years-old and older to eat the sweets. However, dentists have advised against them completely. The sweets have reportedly caused significant damage to children's teeth, tongues and gums in the past. "The sour warhead lollies, in particular, can be very dangerous. Products with this level of acid or PH can cause chemical burns to cheeks and tongue," Dental Association of Australia's Jonathon Teo told the publication. The lollies are reportedly stronger than a can of Coca-Cola. We all know how hard it is to keep kids away from sweets but after seeing what happened to Willow, there's no doubt parents will be more cautious going forward. Children's (aged between 7 and 10) sugar consumption should be limited to no more than 24g of free sugars per day. Kids between the ages of 4 and 6 should have no more than 19g of free sugars a day. Consuming too much sugar can lead to numerous health issues including dental problems and puts them at risk of developing high cholesterol and diabetes when they're older.