Chest skin erythema does not go away is considered to be contact dermatitis, eczema, ringworm, should be standardized according to the different causes of treatment is possible to make the erythema disappear. 1. Contact dermatitis: allergic or irritant reactions that occur after contact with certain sensitizing or irritating substances. If you are continuously exposed to these causative factors, it can also lead to chest skin erythema that never goes away. At this point, you need to try to find the causative factors, and avoid re-exposure. Secondly, symptomatic treatment, such as external zinc oxide ointment, mometasone furoate ointment to stop itching, the more serious can also be combined with oral antihistamine drugs such as cetirizine. 2. Eczema: Eczema is a chronic inflammatory itchy skin disease, the cause of which is unknown, if not treated with medication can also lead to erythema that never goes away. If there is no oozing, you can choose glycerine lotion; if there is oozing, you should use boric acid solution to apply wet compresses, and then apply glucocorticoid drugs such as hydrocortisone butyrate cream; if there is vesiculation, but not much oozing, you can use zinc oxide oil. 3. ringworm: ringworm is a fungal infectious disease, if not treated will not go away on its own, and may also be infected to other parts of the body, or infected to other people, the main smear antifungal drugs, such as econazole, ketoconazole, etc., the symptoms of the heavier people can be orally taken terbinafine, itraconazole. The skin erythema in front of the chest always does not go away, it is recommended to go to the regular hospital to clarify the cause of symptomatic treatment, if you need to use drugs, follow the doctor’s instructions to use.