There are 4 kinds of common facial skin diseases that are easily misdiagnosed as pigmentation spots: seborrheic keratosis, basal cell carcinoma, flat warts and sweat duct tumor. To distinguish them, first look at the age of the spots, then analyze their characteristics, and then choose different treatment methods: facial spots that start to grow in children: usually caused by genetic factors or congenital factors, such as nevus of Ota, freckles. If it is a large patch of blue-black or light brown skin, it is called “nevus of Ota”; if it is a yellow spot of the size of a grain of rice, it is called “freckle”; if it is a patch of coffee color, it is called “coffee spot”. “. At present, the treatment of nevus of Ota uses Q-modulated laser treatment, which can basically cure it without recurrence, and the treatment of freckles can use photon or Q-modulated laser treatment, which is very effective. Some patients with coffee spots have good effect on Q532 laser, and some of them may have no obvious effect. Facial spots of middle-aged and youth onset: The most common ones are melasma and nevus, followed by flat warts and sweat duct tumors. Melasma and nevus seem similar, but their treatment methods are completely different and must be strictly differentiated. “Melasma” is usually symmetrically distributed on the cheeks and is yellowish in color, which may be aggravated by sunlight and may be aggravated by emotion and poor sleep. “Brown-cyanotic nevus” is often mistaken for melasma and leads to wrong treatment. Brown-cyanotic nevus is usually symmetrically distributed on both cheekbones, i.e. underneath both lower eyelids, which means the onset of the disease is closer to the eye area than melasma, and is usually brownish-blue or yellowish-blue in color. The treatment of melasma is a kind of comprehensive treatment, first of all, we should keep a good state of mind and emotion, get enough sleep, and actively protect ourselves from the sun. For obvious melasma, we can consider Q-modulated laser treatment, but this laser treatment is a method of low energy sweeping or irradiation and repeated for many times, and we should not use high energy laser treatment to aggravate melasma. Also use medical whitening moisturizer with spot removal. For cheek nevus, there is a very good treatment method of Q laser irradiation, which can be used once every 3 months and can be basically eliminated in about 5 times without recurrence. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. The first thing you need to do is to use anti-viral and resistance drugs, and now the latest fractional CO2 laser can be a good treatment. Sweat duct tumors are common around the eyes, but can also be seen on the forehead and cheeks, manifesting as small yellow-brown or skin-colored rashes, which can only be treated with microwaves and lasers, and drug therapy is difficult to work. The first consideration is seborrheic keratosis, followed by basal cell carcinoma, “seborrheic keratosis” is a manifestation of skin aging, also known as age warts, but human skin can actually age after the age of 25, so it is common to grow seborrheic keratosis after the age of 30. This is the most effective way to get the most out of your life, but you can also consider microwave and topical exfoliating drugs. “Basal cell carcinoma” is mostly seen in the elderly and is darker in color, so the best treatment is surgical removal. As we can see, the situation of facial spots is very complicated, not only there are many possibilities, but also several kinds of spots can exist at the same time, so ordinary patients can’t diagnose themselves, and they can’t easily believe in cosmetic salesmen and beauty salons “social beauticians” (unprofessional beauticians), so they should choose to choose professional dermatologists for skin laser treatment as soon as possible. The treatment should be done by a professional dermatologist. Only then can they be treated safely and effectively.