This poisoning is due to an exposure to powdered or liquid bleach.
Expectations (prognosis)
The prognosis (probable outcome) depends on how rapidly the alkali was diluted and neutralized. Extensive damage to the mouth, throat, eyes, lungs, esophagus, nose, and stomach are possible. The ultimate outcome depends on the extent of this damage. Damage continues to occur to the esophagus and stomach for several weeks after the alkali was swallowed, and death may occur as long as a month later.