Itching inside the ear all the time may be related to fungal disease of the external auditory canal, eczema of the external ear, chronic diffuse otitis externa and so on. 1. Fungal disease of the external auditory canal: when fungal infection enters the skin tissues inside the ear, the clinical symptoms are ear stuffiness, itching inside the ear, blockage of the ear canal, etc. In severe cases, there will be mucopurulent fluid deep inside the ear, and the ear emits a foul smell. There may be the phenomenon of itching in the ear all the time. 2. Eczema of the outer ear: generally due to the auricle, external auditory canal and local skin stimulation by drugs, pus and other factors, clinical symptoms manifested as itching, burning, redness, swelling, flaking and other phenomena, may cause itchy phenomenon inside the ear. 3. Chronic diffuse otitis externa: the skin of the ear canal is dark red, swollen, moist and thickened, and the tympanic membrane may be thickened and marked. Clinical manifestations are hearing loss, discomfort in the ear, itching sensation. If the phenomenon of itching inside the ear, it is recommended to go to the regular hospital in a timely manner to conduct relevant examinations, a clear diagnosis, and give appropriate treatment.