Children have a circle of red around the lips, a common cause is caused by lipitis or localized eczema this allergic factors, more than the use of local medication extremely oral medication. 1. Lipitis: the cause of this disease is unknown, mostly associated with a variety of chronic long-term persistent stimuli, such as dry climate, wind, cold and mechanical, chemical, temperature, drugs and other factors. Lipitis mainly leads to dry lips, skinning, crusting, itching, swelling and pain, redness around the mouth and other symptoms. Treatment involves removing all irritants, such as changing bad habits like lip licking and lip biting. Avoid wind, cold and other stimuli, avoid spicy food. Local application of 3% boric acid solution, 5% saline and other disinfectant and anti-inflammatory liquid, can also be coated with gentamycin ophthalmic ointment, compounded gentamycin hydrochloride ointment, tretinoin cream and so on. 2. Localized eczema: localized eczema may also cause a circle of redness around the child’s mouth, accompanied by itching and other symptoms, can be applied locally vegetable oil, glycerine lotion, hydrocortisone, etc., secondary infection can be used 3% chloroiodo hydroxyquine cream, etc., and if necessary, can be orally administered chlorpheniramine, loratadine and other drugs. All of the above drugs should be used under the guidance of a doctor, avoid self-medication. There are many other causes of redness around the child’s mouth, so it is recommended to go to the hospital in time and use the appropriate medication under the doctor’s guidance.