Redness and tingling on both sides of the nose may be a normal physiological phenomenon caused by seasonal changes, but may also be caused by allergies, rosacea, seborrheic dermatitis and other pathological factors. 1. Physiological factors: such as winter and spring seasons, the air is relatively dry, if you do not do a good job of facial moisturizing work in a timely manner, can cause skin dehydration and dryness, resulting in redness on both sides of the nose, tingling and other symptoms, and timely skincare and moisturizing symptoms can be gradually relieved. 2. Pathological factors (1) Allergy: contact dermatitis can be caused by contact with allergens in the nose, resulting in an allergic reaction, which can be manifested as redness, swelling, stinging and other symptoms on both sides of the nose. (2) Rosacea: Formerly known as rosacea, it is a chronic inflammatory skin disease with persistent erythema and capillary dilatation that occurs in the middle of the face. Rosacea is a hypertrophic and hyperplastic type of rosacea that can cause redness and tingling on the nose. (3) Seborrheic dermatitis: The sebaceous glands in the nose secrete too much oil, causing local pore obstruction and inflammation, which can lead to redness and stinging symptoms. The causes of redness and tingling on both sides of the nose are many, after excluding physiological factors, if the symptoms of redness and tingling on both sides of the nose occur, it is recommended to go to the hospital in time to find out the cause, and actively treat it, so as not to delay the condition.