Nose redness may be related to rosacea, folliculitis, trauma and other causes. 1. Rosacea: Formerly known as rosacea, the main symptoms are centered on a “red nose”, with paroxysmal flushing in the middle of the face, persistent erythema or papules, pustules, dilated capillaries and other symptoms. 2. Folliculitis: If the hair follicles in the nose area are infected by bacteria leading to an inflammatory reaction, redness and swelling of the nose can occur. 3. Trauma: If the nose is hit by external injuries, the local damage can be caused by the peripheral inflammatory reaction, the phenomenon of nose redness and swelling. It is recommended that people with swollen nose go to the regular hospital in a timely manner to clarify the cause of the disease and carry out standardized treatment under the guidance of the doctor.