Allergic eczema is the collective name for a variety of eczema with allergic reactions as the pathogenesis, a group of inflammatory skin diseases caused by a variety of internal and external factors, the treatment is mainly to remove the cause, internal drug therapy and external drug therapy. The etiology of eczema is not fully understood, except for allergens induced by allergic reactions, some infectious diseases such as chronic cholecystitis, tonsillitis, intestinal parasitic diseases, skin and soft tissue infections; endocrine and metabolic disorders caused by childbirth, pregnancy, menstrual disorders, etc. are also related to the onset and development of eczema, so in addition to allergen detection and avoidance of exposure to remove the cause, it is also necessary to exclude Chronic systemic diseases should be excluded. In terms of internal medication, anti-inflammatory and antipruritic treatment is the basic. Various antihistamines are the basis of eczema treatment and can be used in combination if necessary. Some patients with severe acute conditions can be treated with glucocorticoids, which can effectively reduce the inflammatory skin reaction in the short term. In terms of topical drug treatment, it is necessary to choose suitable topical drugs in combination with the characteristics of the lesions and the onset of the disease at different times, especially in terms of drug dosage forms. For example, glucocorticoid cream can be used in the acute stage without exudation, while boric acid solution is more suitable for wet application when there is obvious exudation, while glucocorticoid creams and ointments are more suitable for the subacute and chronic stages. It should be noted that topical glucocorticosteroids should be avoided on the face and thin skin areas, and non-hormonal anti-inflammatory topical drugs are more appropriate for anti-inflammatory treatment. Therefore, it is best to treat allergic eczema with a combination of internal and external medications under the guidance of a medical professional to remove the cause as much as possible.