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 how do you check for inflammatory scaly skin around the mouth and lips? The following is a brief introduction. Symptom examination of inflammatory squamous skin around the mouth and lips: In the development of the disease, various types of rashes such as erythema, papules, blisters, pustules, vesicles, and crusts can appear in sequence, but often 2-3 types of rashes coexist or a certain type of rash predominates at a certain stage. The condition is often aggravated by frequent scratching due to intense itching. The diagnosis can be made based on the appearance of symptoms. The disease is an allergic disease and is often diagnosed clinically on the basis of the polymorphic nature of the primary rash of the skin lesions in the acute phase, as well as the susceptibility to exudate, intense itching, symmetrical episodes and infiltration and hypertrophy in the chronic phase without difficulty. Laboratory tests: non-specific, possible increase of eosinophils in the blood. If the skin mucosa is broken, a local skin biopsy is feasible, which can clarify the infiltration of eosinophils.