Facial pores are mostly caused by skin dehydration, aging, vitamin deficiency, endocrine disorders and excessive sunlight exposure, etc. Large pores may lead to the occurrence of folliculitis, acne and a series of other skin problems, so they should be taken seriously and actively dealt with, and can usually be improved by the following methods: 1. Skin cleaning and moisturizing: pay attention to personal hygiene in daily life, and wash your face with a mild facial cleanser to avoid stimulating the skin. Makeup should be removed promptly and thoroughly to avoid residual foundation and other cosmetics clogging the pores, which can cause or aggravate enlarged pores and even folliculitis and acne with prolonged accumulation; 2. Improve lifestyle habits: greasy, spicy and sweet foods can lead to excessive secretion of sebum by the sebaceous glands in the pores, and the accumulation of sebum clogs the pores to make expansion. Long-term late nights lead to endocrine disorders, which can also aggravate enlarged pores. Patients should eat more fresh fruits and vegetables, drink more water to replenish body moisture, and avoid stimulating and fried foods. Improve the habits of staying up late and irregular work and rest, go to bed early, get up early, get enough sleep and enhance exercise; 3. Drug treatment: brushing acid is currently a more effective method to shrink pores, by changing the acidity of the skin surface, removing excess keratin and promoting skin cell metabolism. Commonly used acids such as almond acid, apricot gluconic acid, salicylic acid, etc., but not everyone is suitable for acid brushing, dry skin, sensitive skin patients should avoid using it, local use of vitamin E ointment can also help improve enlarged pores. Medication and acid brushing need to be done under the guidance of a professional dermatologist, and patients should not use medication at will.