The cause of nose redness is considered to be related to local trauma, exposure to allergens, rosacea and other factors, and can be improved by giving iodophor, glycerine lotion, loratadine, fusidic acid cream, doxycycline and other medications. 1. Local trauma: If the redness of the nose is caused by bruises or abrasions, povidone-iodine can be given to prevent infection by disinfecting the nose with anti-inflammatory agents. 2. Contact with allergens: some patients may be in contact with allergens, nose redness symptoms, accompanied by itching, can be given to glycerine lotion topical application, can reduce swelling and relieve itching, you can also choose to take oral antihistamine drugs such as loratadine, to improve the local allergic reaction. 3. Rosacea: also known as “rosacea”, may be due to impaired skin barrier function, immune inflammatory response, thus appearing nose redness, can be given to fusidic acid cream medication, but also can choose to metronidazole drugs to kill follicular helminth mites, if necessary, follow the doctor’s advice to choose oral doxycycline or minocycline drug treatment, but this drug is prohibited for those who are allergic. Allergy is prohibited. If the above symptoms, it is recommended to go to the hospital in a timely manner, clear cause, under the guidance of the doctor for regular treatment, the above drugs should be used in accordance with the doctor’s instructions, to avoid self-medication.