A teenager in Evansville, Ind., was severely burned Sunday night while trying to get rid of head lice.

So how did 18-year-old Jessica Brooks attempt this? Police say she was letting her hair soak in gasoline just before a pilot light from a water heater ignited the gas fumes and her hair.

According to authorities, Brooks suffered second- and third-degree burns over half of her body. She was in serious condition at the burn unit at University Hospital in Louisville, Ky.