Redness and swelling of the inner side of the nose may be caused by nasal vestibulitis, folliculitis, nasal boils and so on. 1. Nasal vestibulitis: If you have a long-term preference for nose picking and nose hair plucking, it may lead to infection of the mucous membrane of the nasal vestibule, mucous membrane ulceration, and redness and swelling of the inner side of the nose, accompanied by pain, itching and other discomforts of the nose. 2. Folliculitis: If the skin or hair follicles are damaged, it will easily lead to bacterial invasion inside the skin, causing folliculitis. When folliculitis occurs in the patient’s nose, red pimples will appear, and with the development of the disease, the inside of the nose will appear red, swollen, painful, itchy and other symptoms. 3. Nasal boils: Nasal boils are acute purulent inflammation of the tip of the nose, sweat glands, sebaceous glands of the nose, hair follicles, etc. With the gradual development of boils, yellow pustules will appear, and when they burst, they will cause redness and swelling on the inner wall of the inflamed nose. When the patient has the condition of redness and swelling on the inside of the nose, he should go to the otorhinolaryngology department of the regular hospital immediately, complete the relevant examination, clearly diagnose the cause of the disease, and correctly treat the disease under the guidance of the doctor, so as to avoid delaying the condition.