The cause of burning sensation in the left chest may be that there are local injuries, infections, allergies, application of irritating substances, cardiovascular disease, gastroesophageal reflux disease, neurological dysfunction and so on. The surface of human skin is distributed with rich sensory nerve endings, in the chest contusion, the skin surface smear stimulating substances such as chili oil, allergic to some material components in the environment, there may be burning sensation or hot tingling sensation. There are also pathologic factors, such as pleurisy, myocardial infarction, angina pectoris, and gastroesophageal reflux disease, which can cause patients to experience a burning sensation in the left chest. In addition, patients with autonomic dysfunction, although there is no organic damage, may also self-perceive a burning sensation in the left chest. If the burning sensation in the left chest persists and cannot be relieved, it is recommended to go to a regular hospital as soon as possible.