There are two types of reasons for dry and molting nose: internal factors, related to congenital sebaceous glands with weak secretion, acquired sebaceous and philtrum gland function decline, vitamin A deficiency, consumption of fatty foods, hormone secretion reduction, poor blood circulation in the skin, fatigue and other factors. Exogenous factors, and the scorching sun, cold wind blowing, unclean skin, indiscriminate use of cosmetics and wash the face, bathing too many times. Dry skin moulting in the selection of skin cleanser, it is appropriate to use alkaline-free cream cleanser, you can choose to use the skin stimulation of glycerin-containing soap, should not use shoddy soap to wash your face, less soap, only use water to wash your face; daily life, diligent use of moisturizing creams, nutrient creams, etc., especially in the fall and winter, moisturizing creams should be carried with you. Diet should eat high protein, vitamin-rich and high-calorie easily digestible food. What should I do if I have itchy red spots on my nose? The appearance of itchy red spots on the skin of the nose is often caused by allergies, eczema dermatitis, early psoriasis and other inflammatory skin lesions. When you find such a problem, you first need to go to a dermatologist for diagnosis and treatment according to the cause. If it is an allergy, you need to use anti-allergy drugs; if it is eczema dermatitis, you can use anti-itching ointment, or under the guidance of a doctor; if it is early psoriasis, you need to carry out targeted treatment. However, when encountering itchy erythema, the first principle is to stop using all kinds of cleansers, skin care products, cosmetics, not to scratch, should not be scalded with too hot water, avoid drinking alcohol, pay attention to sunscreen, and go to the hospital as soon as possible to make a clear diagnosis.