Lip and mouth ooze often occurs in the presence of herpes or labyrinthitis, and is often preceded by local burning, itching and flushing. So what diseases should we pay attention to in order to differentiate the diagnosis of oral and lip ooze? 1, chronic non-specific labyrinthitis The diagnosis can be made based on the recurrent course of the disease, which is sometimes mild and sometimes severe, with a good occurrence in the cold and dry season, with red, dry and flaky lips, painful, swollen, itchy or oozing crusts and other characteristics. 2, glandular labyrinthitis Based on the swollen and hard glands, turn over the inner mucosa of the lip and see the opening of the needle-sized purple-red central depression of the duct, with mucus or purulent secretions overflowing, and palpate the corn-like nodules. If necessary, pathological examination should be performed to exclude cancerous changes. 3.Benign lymphoid hyperplastic labyrinthitis Based on clinical features such as limited damage, recurrent severe itching, yellowish mucus outflow and crusting, it is not difficult to make a diagnosis. The lymphatic follicle-like structure of the pathological section helps to make the pathological diagnosis. 4. Plasmacytoid labyrinthitis is difficult to diagnose based on clinical manifestations and can be easily confused with other lip diseases. Histopathological examination is necessary to confirm the diagnosis. 5, granulomatous labyrinthitis Based on the typical symptoms such as diffuse and repeated swelling of the mouth and lips, which cannot be recovered and looks like a mattress on palpation, it is not difficult to make a diagnosis in combination with histological examination. 6.Mei-Luo syndrome is mainly based on clinical symptoms, and combined with histological examination, two main symptoms can be diagnosed as incomplete Mei-Luo syndrome, and all three main symptoms can be diagnosed as complete, but it is not common.