Redness around the nose may be due to seborrheic dermatitis, rosacea and other skin disorders, which can be improved by medication and other means after the cause is clarified. 1. Seborrheic dermatitis: related to Malassezia infection, but also related to immune, mental and other factors, can be used externally ketoconazole lotion or salicylic acid and so on. 2. Rosacea: also called rosacea, can be treated with topical medication such as metronidazole and fusidic acid. The redness around the nose may also be caused by other diseases, it is recommended to go to the dermatology department to confirm the diagnosis of the cause of treatment, do not blindly use drugs in order to avoid delaying the condition.