Itching in the ear may be due to chronic diffuse otitis externa and fungal disease of the external auditory canal, which requires causative and symptomatic treatment according to the cause and degree of the disease. 1. Chronic diffuse otitis externa: water in the external auditory canal, purulent otitis media long-term pus stimulation is the cause. It is easy to develop when the skin of the external auditory canal is traumatized or the local resistance is lowered. Diabetic patients and allergic body are prone to recurrent attacks. The otitis media can be coated with urea cream with triamcinolone acetate, and the secretions or scabs should be removed before applying the medicine, and the whole body should be supplemented with vitamin A; actively treating the infected foci, such as suppurative otitis media; and strengthening the diagnosis and treatment of certain systemic diseases, such as anemia, vitamin deficiencies, endocrine disorders and diabetes mellitus. 2. Otitis externa fungal disease: Otitis externa fungal disease is a kind of disease caused by fungal invasion of the external auditory canal, the disease can lead to the patient to appear in the ear light itchy symptoms, the treatment can be used to salicylic acid ethanol solution coated ear, but also the use of mycobacteria or miconazole and other antifungal drugs coated in the external auditory canal. In addition to the above diseases, other factors can also cause patients to appear in the ear light itchy symptoms, patients can actively seek medical attention, systematic examination to clarify the diagnosis, follow the doctor’s instructions standardized treatment.