Q&A with Top Doctors

Is it a disease if a child's skin looks like chicken skin?

A child's skin resembling chicken skin may be a normal phenomenon, or it may indicate certain skin conditions.

Children have a thinner stratum corneum, and if exposed to dry air or frequent friction, their skin may become dry and flaky, resulting in an appearance similar to chicken skin. This is considered normal and can be improved through moisturizing and avoiding friction. Under a doctor's guidance, topical products containing retinoic acid, salicylic acid, or lactic acid may be used to help regulate keratin metabolism and alleviate symptoms.

However, a child's chicken skin-like appearance may also be related to keratosis pilaris, a common chronic follicular keratosis skin condition with a genetic predisposition. It is primarily characterized by the appearance of small, hard papules, commonly found on the outer sides of the arms, thighs, and buttocks, sometimes accompanied by mild erythema. These papules are actually caused by excessive keratin buildup blocking the hair follicle openings, giving the skin a chicken skin-like texture. Therefore, when a child presents with skin resembling chicken skin, it is advisable to seek timely medical consultation for diagnosis and treatment by a qualified physician.

Maintaining good skincare habits in daily life plays a positive role in improving and managing the symptoms.

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Dr. Liu Wenmin
Jun 06, 2025
Is computer radiation harmful to the skin?

In general, computer radiation is harmful to the skin.

Computer radiation accelerates the evaporation of moisture from the skin, leading to dryness and dehydration, and may even cause allergies and pigmentation issues. Prolonged exposure to a computer screen may also damage collagen in the skin, reduce skin elasticity, and accelerate the aging process. Additionally, computer radiation may affect the endocrine system, lower the skin's immunity, and increase the risk of skin diseases.

When using a computer, it is recommended to maintain a distance of approximately 50-70 centimeters between the screen and your face to minimize direct radiation exposure to the skin. Follow the 20-20-20 rule: every 20 minutes of work, look at an object 20 feet away for 20 seconds, to reduce eye fatigue and promote blood circulation, which benefits skin health. Using moisturizing products can also help maintain skin hydration and reduce the negative effects of radiation.

In daily life, it is advisable to keep indoor air circulating to reduce the impact of dust and bacteria on the skin and help maintain healthy skin.

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Dr. Liu Wenmin
Jun 06, 2025
Is allergic purpura contagious?

In general, Henoch-Schönlein purpura (HSP) is not contagious.

HSP is not an infectious disease transmitted from person to person through contact, airborne droplets, or any other means. Rather, it is a disease caused by an immune system reaction, primarily characterized by purple spots appearing on the skin, resulting from inflammation and bleeding of small blood vessels. This condition is usually associated with the body's allergic response to certain infections, medications, or foods. It is not directly caused by viruses or bacteria and therefore is not contagious, so there is no need to worry about transmitting it to others.

For individuals with cutaneous Henoch-Schönlein purpura, it is important to identify and avoid known triggering factors, and to follow medical advice for treatment in order to manage symptoms and prevent complications. During treatment, doctors may recommend the use of antihistamines, corticosteroids, or other therapies to reduce inflammation and alleviate symptoms.

In daily life, patients are advised to maintain good lifestyle habits, keep the skin clean and dry, maintain regular sleep patterns, and follow a light diet, all of which can help promote recovery from the condition.

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Dr. Liu Wenmin
Jun 06, 2025
Is toxic epidermal necrolysis a serious illness?

In general, toxic skin necrolysis is a serious illness.

Toxic epidermal necrolysis (TEN) is a rare but severe skin disorder, usually triggered by drug hypersensitivity reactions, and is classified as a severe type of drug eruption. In terms of disease severity, TEN may lead to extensive epidermal necrosis and skin detachment, which, in severe cases, resembles extensive burns or scalds, posing a serious threat to the patient's health.

Regarding treatment difficulty and urgency, this disease requires prompt treatment to prevent further deterioration and protect the patient's life. If not treated timely, it can lead to multiple organ failure. Therefore, from the perspective of modern medicine, toxic epidermal necrolysis can indeed be classified as a serious illness.

Once afflicted with this condition, a comprehensive treatment plan should be developed under a physician's guidance, including supportive care, skin repair, and immunomodulatory therapy, aiming to alleviate symptoms, prevent complications, and improve both survival rates and quality of life for patients.

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Dr. Liu Wenmin
Jun 06, 2025
Is washing your face with bar soap good for your skin?

The effect of washing the face with soap on the skin depends on skin type and individual constitution. Soap typically has strong cleansing power, effectively removing oil and dirt from the skin surface. However, soap is generally alkaline and may disrupt the skin's natural pH balance, potentially damaging the skin barrier function. For individuals with dry or sensitive skin, using soap to wash the face may cause increased dryness, tightness, or even itching and peeling. In contrast, for people with oily skin, the cleansing power of soap might help reduce oil secretion, although excessive use could still damage the skin barrier.

It is recommended to choose a suitable facial cleanser based on your own skin type. If your skin tends to be dry or sensitive, opt for a gentle, non-irritating amino acid-based cleanser, which is usually weakly acidic and closer to the skin's natural pH level, effectively cleansing the skin while protecting the skin barrier. If you still prefer using soap, consider mild, low-alkaline soap specifically designed for sensitive skin, and apply moisturizing products promptly after washing to replenish lost moisture. When washing your face, it is recommended to use warm water and avoid excessively hot or cold water, as extreme temperatures may irritate the skin. Additionally, the frequency of face washing should not be too high—once in the morning and once at night is sufficient, as over-cleansing can compromise the skin's natural barrier.

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Dr. Liu Wenmin
Jun 04, 2025
Why Not Washing Your Face in the Morning Can Lead to Better Skin

Not washing your face in the morning can actually benefit your skin, as the oil and sweat secreted by the skin at night provide a certain level of protection, reducing water evaporation. The skin's natural oil barrier helps maintain moisture and softness. If you wash your face immediately in the morning, you may remove these natural protective layers, leading to dryness and tightness. Additionally, during the night, the skin is in a state of repair, and the oils and sweat secreted contain some beneficial components for the skin. These components may be washed away when washing your face in the morning, potentially affecting the skin's health.

If you find that your skin feels better when not washing in the morning, you can try gently splashing your face with lukewarm water instead of using cleansers. This method cleans away dust and dirt while preserving the skin's natural oils. If you need to use a facial cleanser, opt for a gentle, non-irritating amino acid-based cleanser, and avoid strongly alkaline soap products. Maintaining good sleep habits, ensuring adequate rest, and avoiding staying up late are also important, as late nights can burden the skin and lead to skin problems. In terms of diet, consume more foods rich in vitamins and minerals, such as fresh fruits, vegetables, and nuts, which help combat oxidation and promote skin metabolism.

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Dr. Liu Wenmin
Jun 04, 2025
Why Does the Skin Become Darker?

Skin darkening is primarily caused by an increase in melanin. Melanin is produced by melanocytes in the skin and functions to absorb ultraviolet (UV) radiation and protect the skin from UV damage. When the skin is exposed to UV radiation, hormonal changes, inflammation, or other stimuli, melanocytes increase melanin production, resulting in darker skin coloration. Additionally, genetic factors, endocrine disorders, side effects of certain medications, and unhealthy lifestyle habits may also contribute to skin darkening.

To improve skin darkening, it is recommended to avoid prolonged sun exposure. When outdoors, apply a high SPF sunscreen, wear a hat, or use an umbrella to reduce UV damage to the skin. Maintain good sleep habits and ensure adequate rest, avoiding late nights, as sleep deprivation can burden the skin and lead to a dull complexion. Regarding diet, consume foods rich in vitamins C and E, such as fresh fruits, vegetables, and nuts, which help combat oxidation and inhibit melanin formation. Engage in moderate physical activity to promote blood circulation and improve the skin's blood supply. If skin darkening persists or is accompanied by other discomforts, it is advisable to consult a physician promptly.

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Dr. Liu Wenmin
Jun 04, 2025
Why does the skin improve after taking Xiaoyao Pills?

The improvement of skin condition after taking Xiaoyao Pills is due to the pills' functions of soothing the liver and resolving stagnation, as well as harmonizing qi and blood. Xiaoyao Pills are a traditional Chinese medicine formula primarily used to treat symptoms such as emotional depression and menstrual irregularities caused by liver qi stagnation and spleen deficiency. According to traditional Chinese medicine theory, the liver governs free coursing and smooth flow of qi; emotional distress can lead to liver qi stagnation, which subsequently affects the circulation of qi and blood, causing dull complexion and rough skin. Xiaoyao Pills improve the internal environment of the body by soothing the liver and resolving qi stagnation and harmonizing blood flow, thereby indirectly promoting healthier skin.

It is recommended to maintain good sleeping habits and ensure adequate rest while taking Xiaoyao Pills, avoiding late nights, as staying up late increases the burden on the liver and kidneys and hampers skin repair. Regarding diet, consume more foods rich in vitamins and minerals, such as fresh fruits, vegetables, and nuts, which help with antioxidant activity and promote skin metabolism. At the same time, reduce the intake of greasy, spicy, and high-sugar foods, as these may exacerbate excessive internal liver heat and lead to skin problems. Engage in moderate physical exercise to promote blood circulation, which helps improve blood supply to the skin. Additionally, practice sun protection and avoid prolonged sun exposure, as ultraviolet rays are a major factor in skin aging and pigmentation. If skin problems persist or are accompanied by other discomforts, it is advisable to consult a physician promptly.

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Dr. Liu Wenmin
Jun 04, 2025
Can sunken skin after scab fall-off still recover?

Skin depressions resulting from recently healed wounds can be improved to some extent. The skin has a strong capacity for self-repair, especially in the early stages of wound healing. With appropriate care and treatment, regeneration and repair of skin tissue can be promoted, thereby reducing the degree of depression. Skin depressions typically occur due to insufficient or uneven production of collagen and elastic fibers during the wound healing process. If timely measures are taken, this condition can be improved.

It is recommended to keep the wound area clean and moisturized to avoid infection, as infections can worsen skin damage and impair healing. Use skincare products containing ingredients that promote skin repair, such as growth factors, hyaluronic acid, or vitamin C, which can stimulate collagen production and skin cell regeneration. Maintaining healthy lifestyle habits, including adequate sleep, a balanced diet, and moderate exercise, can also help enhance the body's healing capacity. If the depression is particularly noticeable, consider seeking assistance from a professional dermatologist, who may recommend medical aesthetic treatments such as microneedling, laser therapy, or dermal filler injections. These methods can improve the appearance of skin depressions to some extent.

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Dr. Liu Wenmin
Jun 04, 2025
Is collagen good for the skin?

Collagen is beneficial for the skin. Collagen is the most important structural protein in the skin, accounting for more than 70% of the total protein content. It is responsible for maintaining skin elasticity and firmness, making the skin appear plump and smooth. As people age, the body's ability to synthesize collagen naturally declines, leading to skin problems such as wrinkles, sagging, and dryness. Supplementing collagen can help improve these issues and promote skin health.

It is recommended to consume more foods rich in collagen, such as pig's feet, chicken feet, and fish skin, as they contain large amounts of collagen. At the same time, consume foods rich in vitamin C, such as fresh fruits and vegetables, as vitamin C is an important cofactor in collagen synthesis. Maintain good sleeping habits, ensure adequate sleep, and avoid staying up late, as this can accelerate skin aging and affect collagen production. Avoid excessive sun exposure, as UV rays can damage collagen in the skin and lead to premature aging. If necessary, consider using skincare products containing collagen, such as masks and serums, which can help the skin absorb collagen and improve its condition. If skin problems are severe, consult a doctor to determine whether professional collagen injections or cosmetic treatments are needed.

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Dr. Liu Wenmin
Jun 04, 2025