The face always feels hot and spicy may be the manifestation of allergic reaction, contact dermatitis, infectious inflammation and other diseases. 1. Allergic reaction: the use of cosmetics, skin care products, cleaning products or floaters in the outside air may cause facial skin allergies, resulting in allergic dermatitis, abnormal exudation of inflammatory cells, and the appearance of hot and spicy feeling on the face. 2. Contact dermatitis: the skin on the face comes into contact with irritating items, such as chili pepper juice, alkaloids of konjac or yam, and weak acidic solutions, etc., which can lead to inflammation of the skin due to the direct stimulating effect of these contacts, causing a hot and spicy feeling on the face. 3. Infectious inflammation: due to slight local skin damage, loss of barrier function, low immunity, resulting in Staphylococcus aureus, Streptococcus and other purulent bacteria invade the hair follicles and the surrounding and deep soft tissues, causing facial folliculitis, boils, carbuncles and other suppurative inflammation, the lesion site and the surrounding tissues appear red, swollen, hot, painful symptoms, self-consciousness of the face hot and spicy feeling. In addition, solar dermatitis, trigeminal neuralgia, trauma and so on may lead to the face hot and spicy, the patient needs to go to the hospital in time to consult the doctor, clear the cause of the disease and then actively treatment.