How is chronic dermatitis caused?

Chronic dermatitis is not the name of the disease in clinical practice, but refers to the patient's own skin disease presenting a chronic attack process. There are many diseases showing this situation, first of all due to the characteristics of the disease itself, such as eczema presenting a chronic recurrent attack process, which is often closely related to the patient's own allergic constitution. There are also patients with chronic recurrent disease process and treatment may not be particularly timely, or previous treatment has not been completely directly related. There are some fungal infectious diseases such as ringworm, if effective treatment, generally emphasize that the patient treatment obviously has remission and then adhere to a period of treatment, if blindly stop treatment, may cause the course of the disease to present a chronic process of recurrent attacks.