Large pores and pits on the nose may be due to increased sebum secretion, and in terms of treatment, it mainly includes fractional laser treatment, acid brushing treatment, and enhanced skin care. 1. Fractional laser treatment: Fractional laser is a commonly used cosmetic method, through the high energy emitted by the laser treatment instrument directly acts on the deep tissues of the skin and stimulates the local collagen regeneration, so as to achieve the purpose of improving the pits. 2. Brush acid treatment: the use of weak acidic chemicals to remove the sebum secretion on the skin surface as well as the aging stratum corneum, which can achieve the purpose of cleaning the facial skin and improving the enlarged pores. 3. Enhance skin care: Poor skin hygiene, poor dietary habits and infections are important causes of enlarged pores, so it is important to pay attention to hygiene in daily life, maintain a light diet and avoid infections. Patients are advised to go to regular medical institutions for standardized treatment.