• Eyes, ears, nose, mouth, and throat
  • Loss of vision
  • Severe pain in the throat
  • Severe pain or burning in the nose, eyes, ears, lips, or tongue
• Gastrointestinal
  • Blood in the stool
  • Burns of the food pipe (esophagus)
  • Severe abdominal pain
  • Vomiting
  • Vomiting blood
• Heart and blood
  • Collapse
  • Low blood pressure that develops rapidly
  • Severe change in blood acid levels -- leads to organ damage
• Lungs
  • Breathing difficulty
  • Throat swelling (may cause breathing difficulty)
• Skin
  • Burn
  • Holes (necrosis) in the skin or tissues underneath
  • Irritation

Review Date: 01/21/2010
Reviewed By: Jacob L. Heller, MD, MHA, Emergency Medicine, Virginia Mason Medical Center, Seattle, Washington. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)