Eczema on the face of two-month-old babies belongs to infantile eczema. The cause of the disease is not yet completely clear, and it is considered to be related to genetic factors, immune abnormalities, reaction to microorganisms, environmental factors, allergen stimulation and other factors. 1. Genetic factors: If parents suffer from eczema, asthma, allergic rhinitis, their children will have a greater risk of eczema, mainly related to polygenic inheritance. 2. Immune abnormality:The imbalance of immune function in infants and the increase of type II inflammatory factors are also prone to induce eczema in infants. 3. Response to microorganisms:Patients with infantile eczema tend to have increased colonization by Staphylococcus aureus, which in turn exacerbates the immune imbalance and worsens the disease. 4. Environmental factors:Prolonged exposure to a dry environment or over-cleansing of the skin can lead to dehydration and damage to the skin barrier, which can easily cause infantile eczema. 5. Allergen stimulation: Contact with some allergic substances, such as dust mites, dust mites, pollen, nuts, eggs, milk, etc., can cause allergic reactions in the body, which can lead to infantile eczema. It is recommended that patients diagnosed with infantile eczema, go to a regular hospital, follow the doctor’s instructions and actively treat the disease to avoid delays.