Skincare products, Dermatology FAQ

Understanding Flat Warts: Treatment Options and Skin Care Tips

Annoying flat warts Hello, doctor. I apologize for bothering you. I have a few questions: 1. I have flat warts, and previously I sought treatment with retinoic acid, but they became larger and more prominent. Why did this happen? So I switched to cryotherapy using direct contac...

Dr. Zheng Lizhen Reply:
Hello: 1. It may be a phenomenon of ineffective treatment or paradoxical reaction. 2. The spray method is faster and can penetrate deeper. 3. Skincare products do not have therapeutic effects; you may consult a physician about a new topical immunotherapy. 4. No. Sincerely, Dr. Ch...

Effective Ways to Fade Hyperpigmentation Scars on Your Skin

How to lighten scars formed by melanin deposition? Dear Dr. Zheng, I hope this message finds you well. I would like to explain my situation: My skin type is prone to developing post-inflammatory hyperpigmentation, which appears as dark spots after minor scratches or eczema-rel...

Dr. Zheng Lizhen Reply:
Hello: Products containing L-ascorbic acid or sunscreen can accelerate the fading of pigmentation. Please consult a dermatologist for further advice. Sincerely, Dr. Cheng Li-Chen, Dermatologist.

Sudden Acne Outbreak: Causes, Concerns, and Treatment Options

Acne breakout Hello, doctor. My face suddenly developed a lot of acne within a day or two. I used to hardly have any acne. I have seen other dermatologists, but they were very dismissive and didn’t provide me with any information. The nurse said it is just acne, but could it poss...

Dr. Jiang Zheen Reply:
Some patients still experience sudden breakouts of acne within a few days, which can sometimes be related to sudden hormonal imbalances, lack of sleep, stress, topical skincare products, sun exposure, and other factors. If your symptoms are severe, you should visit a dermatologis...

Understanding White Bumps on Legs: Causes, Treatments, and Family Links

The skin on the legs has developed lesions resembling acne? Hello, doctor. Recently, I have developed some white, pimple-like bumps on the front of my calves. After informing my mother, I discovered that this condition also appears in our family and seems to be hereditary. Is it ...

Dr. Huang Ruiyun Reply:
You may have keratosis pilaris; you can try purchasing skincare products containing alpha hydroxy acids at a drugstore.

Dealing with Acne Scars and Pits: Effective Treatments for Clear Skin

I have acne and blackheads on my cheeks, and some of them leave scars when they fall off, creating pitted skin. What should I do? I have been experiencing acne on my face and body since the sixth grade. Initially, it appeared on my body, but during middle school, I started gettin...

Dr. Huang Ruiyun Reply:
When visiting a dermatologist, be prepared for a long-term commitment to acne treatment, which may last several months to years, with treatment methods adjusted based on individual circumstances.

Managing Red, Peeling Skin: Tips for Eczema and Gentle Cleansing

What should I do if my skin is red? I have redness on my face and around my neck, and during cold weather, I also experience peeling. I visited a small clinic, and the doctor said it is allergic atopic dermatitis. Is there a way to completely cure this condition? Also, what type ...

Dr. Huang Ruiyun Reply:
At 17 years old, atopic dermatitis may be difficult to completely eradicate. During severe flare-ups, topical medications can be used, while regular application of petroleum jelly is recommended. For cleansing, Dove can be used. As for other brands, chain pharmacies may carry ski...

Understanding Skin Moles: When to Seek Dermatological Advice

Mole Hello Doctor: I noticed a brown flat mole appearing under my right eye (at the edge of the eye bag) around the age of 20. As I aged, it gradually became raised and has now turned into a protruding mole with hair. The colored area is not in the center of the mole but rather o...

Dr. Zheng Lizhen Reply:
Hello: It is not possible to make a diagnosis based solely on your description. Please consult a nearby dermatologist for an accurate diagnosis and treatment. Sincerely, Dr. Cheng Li-Chen, Dermatology.

Effective Acne Solutions: Tips for Clear Skin and Product Recommendations

Acne, please stay away! Hello Dr. Jiang: Recently, I've suddenly developed a lot of acne, so I went to see a traditional Chinese medicine practitioner, but the results were not significant and I ended up with even more on my neck, especially noticeable during the summer. Do ...

Dr. Jiang Zheen Reply:
Western medicine dermatology has very effective treatments for acne; you should definitely consider seeing a specialist. Wishing you well.

Safe Skincare Products for Pregnancy: What to Avoid and How to Choose

Skincare products for pregnancy? Hello Dr. Cheng, I am preparing to get pregnant, but I have heard that certain skincare ingredients (such as retinoids) can affect the fetus. Currently, I am using skincare products purchased from department store counters or salons. Besides ret...

Dr. Zheng Lizhen Reply:
Hello: Essentially, any ingredients that could affect the fetus should not be included in skincare products. Therefore, as long as the products you purchase are manufactured by reputable companies, there should be no issues. Sincerely, Dr. Cheng Li-Chen, Dermatologist.

Understanding Chemical Peels: Consultation, Costs, and Skin Care Products

Alpha hydroxy acid (AHA) peel Hello, Doctor: I would like to ask if I need to schedule a consultation first, and then the doctor will decide whether I need a chemical peel with glycolic acid to improve my condition? Also, how much does a single glycolic acid peel cost? Do I need ...

Dr. Zheng Lizhen Reply:
Hello: Please schedule an outpatient appointment first to determine whether you need glycolic acid peels to improve your condition. Each glycolic acid peel costs NT$1500, and you may also purchase some home care products for skin improvement, which will cost around NT$2000 to NT$...

Why Acne Scars Keep Recurring: Understanding Your Skin Issues

Acne scars can develop new acne? Hello, Doctor: I would like to ask you about a pimple that appeared in the middle of my upper lip about a year ago. It became swollen and felt burning. At first, I only used over-the-counter ointments, but it continued to swell and worsen. I consu...

Dr. Jiang Zheen Reply:
Recurrent acne may sometimes require oral medication for a period of time to achieve optimal control. Facial itching can occasionally be due to issues with the skin's basic physiological functions, such as its moisturizing ability and pH balance. The simplest method for trea...

Understanding Persistent Acne: Causes and Solutions for Your Skin

Acne issues? I have been struggling with acne since high school, and it has worsened after entering the workforce. The acne is red, swollen, and large. I have seen a dermatologist and have taken some oral medications and topical creams, but the results have been limited, and new ...

Dr. Chen Yiying Reply:
Hello: In response to your question. Are your acne breakouts related to your menstrual cycle? Are you experiencing a lot of work-related stress? Given your age, you should be mentally prepared for a long-term battle against acne. Whether through oral or topical medications, pleas...

Struggling with Enlarged Pores: Seeking Solutions for Acne Scars

Please help me..? Hello Dr. Cheng: I previously heard that applying Metronidazole cream on my face every day could cure acne and blackheads, so I started applying it about 3 to 4 times daily. Within less than a week, my pores became very enlarged, and by the time I noticed, it wa...

Dr. Zheng Lizhen Reply:
Hello: If you have tried many methods and the size of your pores remains unchanged, there may not be any effective solutions available at this time. If you are very concerned about this issue, you might consider using skincare products that contain silicone powder, which can quic...

Severe Skin Keratosis: Causes, Symptoms, and Treatment Options

Severe skin keratosis Hello Dr. Huang: I have severe keratinization on the edges of my palms, the back of my hands, and the soles of my feet. The skin is red, and the appearance makes me feel very self-conscious. It has also spread to the back of my hands! My limbs always feel st...

Dr. Huang Ruiyun Reply:
Palmoplantar keratoderma is mostly caused by genetic factors. You may try using skincare products that contain alpha hydroxy acids, lactic acid, or urea. If you have never seen a dermatologist, it is best to consult one first.

Understanding Melasma: Causes, Treatments, and Lifestyle Solutions

Lentigines Hello, could you please explain how liver spots are formed? I noticed that I had faint spots on my cheeks since around kindergarten. What are the treatment options? Are skincare products effective? My skin is oily, and it seems that scars are difficult to completely re...

Dr. Huang Ruiyun Reply:
Lentigines are related to hormones. Spots that have been present since kindergarten should not be classified as lentigines. It is recommended that you consult a dermatologist for further diagnosis. For oily skin and scars, it is necessary to examine them in person before providin...

How Misusing Skin Creams Can Lead to Deteriorating Skin Conditions

Substance abuse leading to deteriorating skin condition? I heard that applying a cream called "Hydroquinone" can help with skin whitening, so I bought it since it's available at many pharmacies. At first, it worked well and even faded some scars. Without realizing ...

Dr. Huang Ruiyun Reply:
In theory, Hirudoid does not have the side effects you mentioned (nor the effects you described). It is recommended that you visit a dermatologist in person, as further diagnosis cannot be made online.

How Drug Abuse Can Deteriorate Your Skin Health

Substance abuse leads to deteriorating skin condition? I heard that applying a cream called "Hydroquinone" can help with skin whitening, so I bought it since it's available at many pharmacies. At first, it worked well and even helped fade scars. Unknowingly, I used...

Post-Laser Care for Flat Warts: Sunscreen and Skincare Tips

Post-Laser Care and Sun Protection for Flat Warts Hello, I have extremely oily skin with a lot of acne. About three weeks ago, I underwent laser treatment for flat warts, so I would like to ask: 1. How can I apply sunscreen without clogging my pores and causing more acne? It se...

Dr. Zheng Lizhen Reply:
Hello: 1. Choose a lightweight sunscreen; a higher SPF does not necessarily mean it is greasier, but rather depends on the formulation of the product. Whether to use a facial cleanser depends on the condition of your skin; if it is too oily or dirty, it is better to cleanse it th...

Post-Laser Care for Flat Warts: Tips for Oily Skin Management

Post-treatment care for laser therapy of flat warts? Hello, I have extremely oily skin and a lot of acne. About a month ago, I underwent laser treatment for flat warts, so I would like to ask: 1. How can I apply sunscreen without clogging my pores and causing more acne? It seem...

Dr. Huang Ruiyun Reply:
1. When selecting sunscreen products, foundations, lotions, etc., it is best to choose those labeled as non-comedogenic, non-acnegenic, or won’t clog pores, indicating a lower likelihood of causing acne. If you feel your face isn't clean, you can use your usual facial soap. ...

Effective Treatments for Chickenpox Scars: Creams and Laser Options

Chickenpox scars Doctor: Is there any medication to apply for removing the "brown scars" left by chickenpox? If laser treatment is needed, how much does it typically cost?

Dr. Chen Yiying Reply:
Hello: In response to your question, I would like to know when you had chickenpox and how long it has been since the wounds healed. If the discoloration is due to post-inflammatory hyperpigmentation, simply avoiding sun exposure will allow the color to gradually return to your sk...

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