Blood Severe change in acid level of blood (pH balance), which leads to damage in all of the body organsEyes, ears, nose, and throat Burns to the eyes, which may result in permanent vision lossSevere pain in the throatSevere pain or burning in the nose, eyes, ears, lips, or tongueGastrointestinal Blood in the stoolBlood in the stoolBloody stools often are a sign or a problem in the digestive tract