The burning pain on the face is usually caused by external stimulation, contact dermatitis, dengue and other factors. 1. External stimulation: when the weather is hot, the human body will secrete a lot of sweat, if there is a small wound on the face, the sweat stimulates the face, which can make the face have a hot pain, in addition, if the face comes into contact with irritating substances, such as chili peppers, etc., it can also stimulate the face to have a hot pain. 2. Contact dermatitis: If the face is stimulated by exogenous substances (such as insect hair, pollen, detergents, etc.), contact dermatitis can be easily triggered, resulting in erythema and edema on the patient’s face, accompanied by pimples and oozing, and the patient can feel hot and painful. 3. Dengue: at first, the patient may have fever, then, the patient’s face, calves and other parts of the face will appear a small piece of progressive expansion of erythema, and the patient may be self-conscious of the hot pain. In addition, there are many other causes can be caused by the face of the hot pain, it is recommended to seek medical attention in a timely manner to identify the cause of the disease, as soon as possible to receive treatment.