What are the first aid principles for burns?

First aid principles for quickly freeing the patient from heat include the following: 1. To quickly remove the patient from heat and protect the injured site; 2. To keep the patient's respiratory tract unobstructed, and to give the patient sedation, pain relief, anti-shock treatment; 3. For moderate and small second-degree burns, rinse with ice water or cold water, or wet compress with cold compress, so as to reduce tissue damage and pain. Fourth, if the patient is burned by chemicals, he should be quickly washed with a large amount of water for a long time, and the time should not be less than 30 minutes; if the patient shows chemical burns on the face, the eyes should be washed first; if the patient shows electrical burns, the power should be cut off before rescue; if the patient shows cardiac arrest, cardiopulmonary resuscitation should be performed immediately.