If battery or open battery is ingested, do not induce vomiting or give food or drink. Seek medical attention immediately. Inhalation of mercury vapors can cause central nervous system impairment, chest pains, dypsnea, and coughing. Inflammation of the mouth and kidney damage may result. Provide fresh air and seek medical attention.
Mercury oxide can cause delayed burns and skin sensitization.
Remove contaminated clothing and wash skin with soap and water. If a chemical burn occurs or if irritation persists, seek medical attention. Contents of an open battery can cause severe irritation and chemical burns. Immediately flush eyes thoroughly with water for at least 15 minutes, lifting upper and lower lids, until no evidence of the chemical remains. Seek medical attention.