Itching in the ear and painful when you touch it may be a fungal infection. Fungal infections in the external ear canal occur when antibiotic ear drops, such as oxyfloxacin ear drops, are used for a long time, or when the external ear canal is wet or watery, or when there is an accumulation of purulent secretions inside the external ear canal for a long time. After fungal infection, there is no symptom in mild cases, but in severe cases, there will be redness and swelling in the external ear canal and hearing loss, and if combined with bacterial infection, there will be pus overflow and pain. If you can see black or white fungal filaments in the external ear canal during examination, you should go to the ENT department for examination. If the fungal infection in the external ear canal is diagnosed, you should actively treat it because it is easy to recur, and you should pay attention not to dig your ears often, and you should not go to an irregular ear-picking store to dig your ears.