(First Coast News ) - The prognosis is good for a California teen in intensive care after she took a friend's antibiotic and ended up with an allergic reaction that is burning her body from the inside out.

Yaasmeen Castanada, 19, has been diagnosed with Stevens-Johnson Syndrome, a rare, life-threatening drug reaction that causes death in up to 25% of adults who get it.

Victor Joe, director of the burn center at the University of California-Irvine Medical Center, where Castanada is being treated, says that while her chance of survival is strong, her treatment is delicate because the condition causes the top layer of the skin to die and shed, creating blisters and open wounds.

Doctors have wrapped Castanada's body in a special dressing that adheres to the open wounds and allows the skin to heal without having to remove bandages to clean the wounds.

The condition has ravaged her. Joe says 65% of her body, including her arms, hands and torso, has been affected. He says she is on a ventilator, under sedation and on painkillers. He says doctors are giving her medication intravenously to block the cells that are attacking her skin.

The family has set up a GoFundMe account. You can donate here. 

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