Immediately call emergency services if you experience extensive chemical burn exposure. Symptoms of severe chemical burn exposure include a large burn surface area, shortness of breath, chest pain, dizziness, decreased blood pressure, palpitations, fainting, chills, pallor or sweating. Do not remove any clothing on or near the burn site. Run cool water over the area, elevate the burn site above the heart if possible and avoid breaking blisters. Wash away any chemical on the face or in your eyes. If washing your face in the sink does not seem to be effective, step into the shower to remove chemicals from your face and body.