Dry and itchy nose, always want to pick, may be due to dry weather, nasal vestibulitis, nasal vestibular eczema, allergic rhinitis, etc. It is recommended to consult a doctor in time, to clarify the cause of the disease, and to the cause of the treatment; do not pick your nose, to avoid causing damage to the nasal mucosa. 1. Dry weather: low humidity in the air can easily cause dry and itchy nasal cavity. It is recommended to place a humidifier at home to keep the humidity in the air at the normal level, which can relieve the symptoms. 2. Nasal vestibulitis: chronic patients may appear nasal vestibular skin itchy, dry, foreign body sensation, with burning, tenderness and other symptoms. Sulfathiazole ointment can be used externally and 5% zinc oxide ointment can be used externally in the nasal vestibule for treatment. 3. Nasal vestibular eczema: there may be nasal itching, nasal vestibular ulceration, crusting or oozing and other manifestations, can use dexamethasone ointment, fluoride acetate easy cream nasal vestibule of the affected area coated. 4. Allergic rhinitis: contact with allergens leads to symptoms such as nasal itching, sneezing, nasal discharge and nasal congestion. Anti-allergic drugs such as levocabastine hydrochloride and cetirizine are often used for treatment. It is recommended that patients go to the hospital in time to clarify the cause of the disease. If you need to use drugs, you need to use under the guidance of a doctor.