Nose redness may be caused by seborrheic dermatitis, rosacea, mechanical irritation, etc. The repair method is to choose the appropriate medication for the specific disease, such as erythromycin ointment, pimecrolimus cream, urea cream and so on. 1. Seborrheic dermatitis: This is an inflammatory skin disease, manifested as erythema and greasy scales in sebaceous gland-rich areas, which can be accompanied by itching and other symptoms. For treatment, it can be treated with topical antifungal drugs, such as ketoconazole, econazole, etc.; topical immunomodulators, such as tacrolimus cream, pimecrolimus cream, etc.; and oral antihistamines, such as chlortetracycline. 2. Rosacea: Rosacea can be characterized by sensitive redness and pimples on the face, mainly involving the middle of the face. It can be treated with topical immunomodulators, such as tacrolimus cream, pimecrolimus cream, etc.; oral retinoids, such as isotretinoin, to reduce the symptoms; oral non-specific anti-inflammatory drugs, such as compound glycyrrhizin tablets. 3. Mechanical stimulation:Certain mechanical stimulation, such as repeated friction on both sides of the nose, can easily lead to nasal redness. For treatment, avoid friction, blow your nose without excessive force, and use moisturizers such as urea cream. There are many causes of nasal redness, so it is recommended that patients go to the dermatology department of a regular hospital for treatment and not to blindly use their own medication.