Symptoms of perioral eczema include inflammatory scaly skin around the mouth and lips, and dry, cracked and painful lips and mouth. The rash is caused by the child’s excessive lip licking or finger sucking, which causes saliva to irritate the surrounding skin. Once those bad habits are changed, the perioral eczema will disappear quickly. Many factors related to the small size of the mouth and teething during infancy make it easy for eczema to form around the mouth. Since the cause of drooling persists, the eczema around the mouth is recurrent. So what are the causes of inflammatory scaly skin around the mouth and lips? Here is a brief introduction. The causes of eczema in babies are complex, due to the smallness of the mouth during infancy as well as teething, allergies and many other factors, of which allergies are the most important, so babies with a family history of allergies are prone to eczema. Infants are also prone to eczema and its own factors: because the infant skin stratum corneum is thin, capillary network is rich and the endothelium contains more water and chloride, it is more sensitive to various irritants, so it is also called infant eczema. This makes it easy to form eczema around the mouth. As the cause of drooling persists, perioral eczema is recurrent. It is recommended that you should follow the seasons and give your baby a good environment. For example, the winter season is dry, the baby’s skin will also become dry, should pay attention to the baby’s skin moisturizing; summer skin perspiration function is poor, so the temperature must be low, do not cover the baby excessively.