A burn can penetrate all layers of the skin, according to the Centers for Disease Control and Prevention. It can leave it charred with white, black or brown patches. Symptoms of severe cases can include persistent pain and redness, swelling, fever, blisters that are larger than two inches or that ooze. Doctors may treat burns with bandages, antibiotics or even tetanus shots.
The American Burn Association estimated 486,000 burn victims required medical treatment in 2016. About 40,000 required hospitalizations the same year.
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While organizations, aside from YouTube, have not responded to the latest fad or released any data related to it, many on Twitter are urging others not to participate and expressing their thoughts on the challenge.
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