Whether or not pus inside the ear can heal itself depends on the specific cause of the pus flow. Pus in the ear indicates acute purulent inflammation in the ear, and when the inflammation is mild, it may heal itself in a short period of time. However, if there is acute purulent otitis media or fungal otitis externa causing pus in the external ear canal, failure to treat the condition will only gradually aggravate it and develop into chronic inflammation, which cannot be completely cured. When there is pus in the external ear canal, you need to go to the otolaryngology department in time, and the doctor will give corresponding treatment, such as removing the purulent secretions in the external ear canal and giving anti-infection medication. If the pus is caused by a neoplastic disease of the middle ear, further surgical treatment may be required to eradicate the cause. Patients with pus in the ear should go to the hospital for examination to find the root cause of the disease in order to treat it scientifically and reasonably. Care should also be taken not to exercise strenuously, to rest properly, and to keep the ear clean and dry.