Symptoms:

• Airways and lungs
  • Breathing difficulty (from inhalation)
  • Coughing
  • Throat swelling (which may also cause breathing difficulty)
  • Wheezing
• Eyes, ears, nose, and throat
  • Severe pain in the throat
  • Severe pain or burning in the nose, eyes, ears, lips, or tongue
  • Vision loss
• Esophagus, stomach, and intestines
  • Blood in the stool
  • Burns of the esophagus (food pipe) and stomach
  • Severe abdominal pain
  • Vomiting, possibly with blood
• Heart and blood
  • Collapse
  • Low blood pressure (develops rapidly)
  • Severe change in pH (too much or too little acid in the blood, which leads to damage in all of the body organs)
• Skin
  • Burns
  • Holes in skin tissue (necrosis)
  • Irritation