Sores on the inner wall of the nose are often seen in acute rhinitis, nasal vestibular boils, nasal vestibulitis, etc. 1. Acute rhinitis: Bacterial or viral infections can lead to ulceration and erosion of the inner wall of the nasal cavity, and there is a tendency for a large amount of exudate to crust over, often causing significant pain. 2. Nasal vestibular boils: more common acute suppurative inflammatory infections, mostly caused by Staphylococcus aureus infections, which can lead to localized redness, swelling and hot pain, with the gradual progression of the disease, it is easy to develop into boils, and ultimately rupture pus outflow. 3. Nasal vestibulitis: it may be caused by pulling out nasal hair or dust stimulation, resulting in inflammation of the skin in the nasal vestibule area, or it may be due to allergic rhinitis, sinusitis, etc., resulting in increased secretions, causing long-term stimulation of the local area, can also cause nasal vestibulitis, resulting in localized skin dry cracks or cracks, and accompanied by the redness of the nostril area. Sores on the inner wall of the nose may also be caused by other reasons, it is recommended to go to the ENT department of the hospital in a timely manner to identify the causes of targeted treatment.