The etiology of eczema on the genitals is complex, and it includes both internal and external causes. Internal causes such as systemic chronic diseases can cause. The external causes are usually allergic factors, as well as dietary and lifestyle habits. Drug treatment can be oral second-generation antihistamines, such as cetirizine and loratadine. If the effect of taking drugs is not very obvious, you can combine the treatment. After the symptoms have subsided, the dosage can be gradually reduced. For topical drug treatment, try not to use hormonal drugs, such as not to use mometasone furoate, fluticasone propionate, etc. It is recommended to use non-hormonal drugs, such as zinc oxide cream, vitamin E cream. But the specific diagnosis and treatment is recommended to go to the regular hospital under the guidance of clinicians, and avoid delaying the disease.