Eczema is a common allergic skin reaction caused by a variety of factors. The most characteristic features are intense self-induced itching, polymorphic lesions, symmetrical distribution, tendency to exude, and a chronic course. Babies often have a skin condition called baby eczema during infancy, which is an allergic (or allergic) disease, acute or subacute eczema, usually occurring on the head and face of infants, and is generally curable within a short time. If the condition is severe, the itch is unbearable, but it will still heal by the age of about 2. Only a small number of them will remain with the child until childhood, which will also affect the child’s physical and mental health. Baby eczema usually occurs as early as 1-3 months of age and is also known as neonatal eczema. Children with baby eczema are prone to other allergic diseases later in life, such as asthma, allergic rhinitis, and allergic conjunctivitis. Baby eczema is a common, frequent and recurrent skin inflammation. The etiology of baby eczema is related to genetic and external triggers. The direct cause of baby eczema: the causes of baby eczema are complex, of which allergic factors are the most important, so having a family history of allergies (such as father, mother, grandfather, grandmother, maternal grandfather, maternal grandmother, siblings and other family members who have had eczema, allergic rhinitis, allergic dermatitis, allergic conjunctivitis, asthma, food allergies and drug allergies) can also trigger baby eczema and is Baby eczema is one of the causes of baby eczema. There are other causes of baby eczema, if the child’s parents are allergic, then the child has a 70% chance of being allergic; the cause of baby eczema is also, if one of the parents is allergic, the child still has a 50% chance of becoming allergic. Baby eczema causes of triggering factors: the occurrence of the baby, many substances will trigger or aggravate the symptoms of eczema, such as food protein, especially fish, shrimp, eggs and cow’s milk, contact with chemicals (skin care products, toiletries, detergents, etc.), wool products, chemical fiber items, plants (various plant pollen), animal leather and feathers, the onset of infection (viral infection, bacterial infection, etc.), sunlight exposure, high environmental temperatures or wearing too warm, the environment is too warm, the baby’s eczema. High ambient temperature or wearing too warm or cold can stimulate the recurrence or aggravation of eczema in babies. There is a specific type of pediatric eczema that occurs around the anus of the child and is often associated with pinworm infection, called pinworm eczema. The internal factors of the cause of baby eczema: babies are prone to eczema and its own factors, because the baby’s skin stratum corneum is thin, capillary network is rich and the endothelium contains more water and chloride, more sensitive to various irritants, so called baby eczema. Baby eczema prevention: baby eczema prevention is very important. Usually, children’s underwear should wear loose and generous cotton fabrics or fine soft fabrics, do not wear chemical fiber fabrics. Inner and outer clothing are avoid woolen fabrics, as well as flannel clothing. It is better to wear cotton material jacket, cotton jacket, flannel shirt, etc. Pay close attention to the child’s digestive status and whether he or she is allergic to milk, eggs, fish, shrimp and other foods. For breastfeeding, the mother should avoid such allergy-prone foods. The child should avoid irritation from alkaline soaps, cosmetics or perfumes. Do not take BCG or other vaccinations during the onset of the disease. Avoid contact with patients with herpes simplex (commonly known as “hot sores”) to avoid the development of herpetic eczema.