A red circle around a child’s mouth is mostly a sign of chronic labyrinthitis or perilabial dermatitis due to a tendency to lick the lips. Parents should pay attention to take their children to consult a doctor to understand the difference between labyrinthitis and lip dermatitis and then treat the symptoms. Common causes 1, chronic lipitis: the surface layer of the lips has a layer of lipids, which can play a protective role for the lip red mucosa, some children have the bad habit of licking their lips, often licking the lips easily lick off this layer of lipids, losing the protective role of the lip red mucosa, the lips will appear dry, cracked, bleeding symptoms, if children continue to lick their lips, the lips will slowly form a circle of red around; 2, peri-lipodermatitis. When children feel dry lips, they will habitually use their tongues to lick, due to the long-term stimulation of saliva around the lips, and children like to use their hands to rub, which can easily lead to skin breakouts around the lips, leading to bacterial infection, triggering lip dermatitis, the symptoms are mainly manifested as moist red rashes around the mouth and lips. Treatment 1, children can be under the guidance of the doctor local external saline wet compress affected area, wipe dry in the affected area coated with erythromycin ointment or butyl hydroxy acid cream for treatment; 2, usually can eat more vitamin C, vitamin B2-rich food, such as spinach, celery, tomatoes, apples, etc., help lip inflammation recovery. Parents should pay attention to correct the child’s habit of licking his lips in time. Pay attention to give children more water and eat more fresh fruits and vegetables. After the symptoms are relieved, pay attention to apply lip balm to the child for moisturizing at any time.