Everyone has a particular skin type: normal, dry, sensitive, oil or combination. Knowing your skin type allows you to find the right skincare products and create an effective treatment while minimizing irritation. If you don't know your skin type, you can ask a dermatologist, a make-up artist or an employee at a skincare/make-up store. They can test your skin and give you recommendations on skincare.  Normal: barely visible pores, no sensitivity, good complexion. Dry: small pores, patches of red, less elasticity, dull complexion. Sensitive: you experience redness, itching, burning or dryness when exposed to an irritant. Oily: larger pores, shiny complexion, presence of blackheads, pimples and other blemishes. Combination: normal in some areas, dry or oily in others, especially in the T-zone. Try to be as gentle as possible on the affected area and use warm, not hot, water. Brands such as Dove, Jergens and Dial make mild soaps that are designed to clear skin without further drying or irritating it. You could also use a facial cleanser with salicylic acid, a compound that helps remove and prevent acne. Wash with clean fingers and avoid irritants like buff puffs, loofahs, or cloths. Your hands are a perfectly acceptable way of washing your face. Anything else will probably irritate your skin more than it helps it. Drinking more water helps your body stay healthy and functioning at a high level. And drinking water means you're probably not drinking sugary drinks, such as juices, sodas, and energy drinks. Because, yes, there is growing evidence of a connection between what you eat and how much acne you get. Keeping your body hydrated in turn keeps your skin hydrated. This gives skin that plump, healthy look and feel. once a week. This will help remove dead skin cells, soften skin and smooth out your skin tone. You can buy a scrub or exfoliant. Just remember that more is not always better. Exfoliating more than once a week can dry skin out and actually irritate it. While getting a little bit of sun is healthy, too...

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Write a summary of the previous text in Vietnamese:
Xác định loại da của bạn. Rửa mặt hai lần một ngày bằng xà phòng dịu nhẹ hoặc sữa rửa mặt. Uống đủ nước. Tẩy tế bào chết Bảo vệ khi ra nắng. Nhận biết những nguyên nhân khác nhau gây ra mụn. Không nặn mụn hoặc chạm vào da mặt.