When patients are burned by high voltage arc, they should seek medical treatment immediately, or call the emergency number, and be treated by the doctor according to the actual condition, which can be treated by drugs, surgery and other methods. 1. Drug treatment: For patients with mild burns, after removing the necrotic tissue, they can be treated by applying drugs such as silver sulfadiazine. For patients with severe burns, after the wound is cleaned up, antibiotic ointment and other drugs can be applied as prescribed by the doctor for treatment. If necessary, tetanus antitoxin can be injected under the guidance of the doctor. 2. Surgical treatment: for patients with large dermal wounds or poor drug treatment, skin grafting can be taken to carry out treatment. For mild high-voltage arc burns, patients can be immediately immersed in cold water, and the use of gauze bandages to protect the wound, for severe burns patients, it is recommended to seek medical treatment.