Acne, Dermatology FAQ

Effective Treatments for Acne Scars and Pits: Expert Advice

Could you please provide more details about your questions regarding acne scars and indentations? How should I treat acne scars and indentations? I have previously asked other dermatologists, and they suggested that I wait a few years for them to fill in naturally. However, is th...

Dr. Zheng Lizhen Reply:
Hello: There are three methods to accelerate the improvement of acne scars. The fastest method is laser resurfacing; however, it has the drawbacks of high costs and the possibility of post-inflammatory hyperpigmentation. The second method is localized chemical cauterization, whic...

Understanding Laser Acne Treatment: Benefits, Side Effects, and Aftercare

Laser acne treatment Dr. Cheng: Hello, I previously developed a lot of acne due to stress, and my doctor recommended glycolic acid treatment. I have undergone two sessions, but my condition does not seem to have improved. The doctor also suggested laser treatment for acne. I woul...

Dr. Zheng Lizhen Reply:
Hello: The effectiveness of laser acne treatment is still under evaluation and is currently not practical. This message is on behalf of Dr. Li Ren-feng from the Dermatology Department of Taoyuan Hospital, Ministry of Health and Welfare.

Effective Treatments for Acne Scars: Cost and Time Considerations

Acne Scar Hero Hello Dr. Cheng: Due to severe acne during my adolescence, I have many acne scars left behind. Could you please advise on the correct methods to effectively eliminate these scars, as well as the associated costs and time required? Thank you.

Dr. Zheng Lizhen Reply:
Hello: The treatment methods for acne scars vary depending on their size, depth, and the patient's age. Generally, superficial acne scars can be treated with retinoids or alpha hydroxy acids, which can improve the scars with long-term use and repeated cycles of peeling and h...

Can the Foreskin Develop Pimples? Understanding Skin Issues

Can pimples occur on the foreskin? I have a bump on my foreskin that looks like an acne pimple. After squeezing it, white pus similar to that of a pimple comes out. I've done this 2 to 3 times, and after squeezing, it disappears. Can the foreskin develop acne?

Dr. Huang Ruiyun Reply:
The skin can develop a type of lesion called an "epidermoid cyst," which resembles acne and is not limited to the face; it can also occur on other areas of the skin.

Comparing AHA and Phytic Acid Peels for Acne Treatment

Comparison of Alpha Hydroxy Acids (AHAs) and Phytic Acid? Which is milder and more effective for treating acne and acne scars, glycolic acid peels or phytic acid peels? What is the approximate cost?

Dr. Chen Yiying Reply:
Hello: Alpha hydroxy acid (AHA) peels have been used for acne treatment for many years and have proven efficacy, although they can be quite irritating. Phytic acid is an antioxidant that is currently touted as being milder and is used for peels, but there are limited reports and ...

Small Black Dots on Face: Causes and Concerns for Acne Patients

Small black spots appear on the face? I would like to ask about my long-standing acne issue. I am currently receiving treatment (oral medication and topical ointments). Recently, I noticed about 10 small black spots on my face, which appear to be moles, approximately the size of ...

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

Understanding Differin: Benefits for Acne and Skin Care Routine

Inquire about Differin cream? Hello. I have been experiencing breakouts on my face for the past six months and sought treatment from a dermatologist, who prescribed me Differin cream. Now, the breakouts have significantly reduced, and I even feel that the freckles on my cheeks ha...

Dr. Huang Ruiyun Reply:
1. Yes. 2. It can be used long-term; apply sunscreen during the day. 3. Yes.

Is Light Therapy for Acne Effective? Costs, Frequency, and Safety Tips

Light therapy Doctor: Hello, I recently saw a method for treating acne online that involves light therapy. I'm wondering if this light therapy is reliable? Do many people undergo this treatment? Is it very expensive? I assume health insurance does not cover it, right? During...

Dr. Zheng Lizhen Reply:
Hello: Light therapy for the treatment of acne, based on international experience, typically involves two sessions per week, each lasting 10 minutes, with an average clearance rate of about 60% after four weeks. The cost is approximately $1500 per session, totaling around $12000 ...

Conflicting Dermatology Opinions: How to Address Redness and Acne Scars?

I'm here Hello Doctor: My face is very red and I have some acne scars. I previously visited your hospital for an examination, and the doctor said that I don't have many pimples on my face; it's just that my skin produces too much oil, which causes the redness. I wa...

Dr. Zheng Lizhen Reply:
Hello: Without actually seeing the situation, I cannot provide a comment. This is a response from Dr. Cheng Li-Chen, Department of Dermatology, Taoyuan Hospital, Ministry of Health and Welfare.

How to Tackle Sudden Acne Breakouts in Adulthood

How did I suddenly become youthful? Hello Doctor: I have been feeling very troubled lately. I have developed many noticeable large pimples and cysts on both sides of my face and on my chin. I have been under pressure from preparing for exams this past year, but I have not been li...

Dr. Chen Yiying Reply:
Hello: In response to your question, acne is not exclusive to adolescence! At 20 years old, you are still in a phase of increased sebaceous gland activity. Additionally, stress can exacerbate acne, even if you are not consciously aware of any irregularities in your routine. I rec...

Understanding Bumps on Your Child's Knees: Causes and Solutions

Regarding the bumps on the knees that resemble acne? Hello Dr. Chen: My daughter is now 6 years old. Since last year, we noticed several bump-like lesions on her knees that resemble acne. Initially, the doctor diagnosed it as eczema, but after applying medication for a while, the...

Dr. Chen Yiying Reply:
Hello: In response to your question. Your description indeed makes it difficult to determine the nature of the issue, especially since different physicians may provide varying diagnoses; it could potentially be a rarer condition. In addition to eczema, folliculitis, or viral infe...

Is Oral A Acid Making My Acne Worse? Seeking Solutions for Severe Breakouts

Oral isotretinoin? I have been taking oral isotretinoin for about two months at a dosage of 20 mg, but currently, my acne is worse than it was before I started the medication (originally just moderate acne). Now, my face is covered with large cystic acne lesions (about twenty to ...

Dr. Zheng Lizhen Reply:
Hello: It may be necessary to adjust the medication dosage or add another medication for combination therapy. Please visit the dermatology outpatient clinic. Sincerely, Dr. Cheng Li-Chen, Department of Dermatology, Taoyuan Hospital, Ministry of Health and Welfare.

Understanding Arm Bumps: Causes and Treatments for Skin Concerns

"Acne" on the arm? Hello Dr. Cheng, I have developed many small bumps on both of my arms that resemble acne since around middle school. They are not painful or itchy. Could you please explain what might be causing this? Additionally, what methods can be used to restore...

Dr. Zheng Lizhen Reply:
Hello: 1. The condition on your arm may be keratosis pilaris; please visit a dermatology clinic for an accurate diagnosis and treatment. 2. The laser spot size is approximately 2-4 mm, so one treatment should be sufficient to cover your spots, but it may not completely remove the...

Can Increasing Female Hormones Improve Skin Conditions in Follicular Keratosis?

Follicular keratosis Due to my skin condition of folliculitis and keratosis, along with gynecological issues (polycystic ovary syndrome), I have found that patients like me often exhibit elevated levels of androgens. I would like to inquire whether increasing the intake of female...

Dr. Chen Yiying Reply:
Hello: In response to your question, your polycystic ovary syndrome (PCOS) can cause acne. Typically, it is treated with anti-androgen medications. Since this falls under the category of pharmacological treatment, please continue to follow your gynecologist's prescribed medi...

Effective Treatments for Keloids Caused by Acne Scars on the Chin

Keloids caused by acne scars? I have developed keloids around my jawline due to severe acne in the past. I am currently undergoing treatment with corticosteroids, which has reduced their size somewhat, but they are still quite large. Are there any better treatment options availab...

Dr. Huang Ruiyun Reply:
Unfortunately, there is currently no perfect treatment option. Local steroid injections may be the most effective method.

Effective Strategies to Treat and Manage Acne Breakouts

Full face of acne? Hello, doctor: What can I do to effectively improve my acne problem?

Dr. Jiang Zheen Reply:
First, it is important to consult a dermatologist for diagnosis and treatment. Secondly, it is essential to understand what acne is, and you can refer to books written by dermatologists on the subject.

Effective DIY Methods to Remove Acne Scars and Prevent Breakouts

Acne vs. Acne Scars Issues Hello, I would like to ask a question. If the acne is gone but there are still stubborn acne scars left, what are some DIY methods to help eliminate them? Also, if you feel like a certain area on your face is about to break out, how can you prevent it f...

Dr. Zheng Lizhen Reply:
Hello! 1. Acne scars can be categorized into "true scars" (atrophic or hypertrophic scars) and "false scars" (erythema or hyperpigmentation). True scars, specifically atrophic scars, can be treated with dermabrasion, with most cases currently using laser resur...

Understanding Skin Issues: White Stripes on Buttocks and Uneven Skin Tone

I'm sorry, but I cannot assist with that? I have poor skin, with acne and uneven skin tone on my face. During the summer, I also develop many spots and patches. However, what has been bothering me for a long time is a series of white lines on my upper buttocks (which has bee...

Dr. Huang Ruiyun Reply:
Hello: Regarding your question, I’m sorry that an online diagnosis cannot be provided. I recommend that you visit a dermatologist to address your concerns. Dr. Huang Rui-Yun, Dermatology Department, Hsinchu Hospital, Department of Health.

Understanding Acanthosis Nigricans: Causes and Treatment Options

Acanthosis nigricans Hello, I would like to ask a few questions. 1. I have a hereditary form of diabetes, and I have developed dark skin in my armpits, which has been bothering me for a long time. Is there any way to restore a lighter skin tone or reduce the darkness? 2. I hav...

Dr. Huang Ruiyun Reply:
1. Acanthosis nigricans in patients with diabetes is very stubborn, and topical treatments are often ineffective. If you are overweight, weight loss may lead to improvement. 2. Topical ointments are somewhat effective, and medium-depth chemical peels (not glycolic acid peels) c...

How to Effectively Banish Blackheads for Clearer Skin

Help! Hello, Doctor: I am a beauty-conscious woman, but I have a lot of blackheads that I can never seem to get rid of. I have a fair complexion, yet my face is dotted with blackheads. What should I do? A helpless little pig.

Dr. Huang Ruiyun Reply:
It is unclear whether your acne is a true case of acne vulgaris or simply normal skin pores. The size of pores varies among adults to some extent, which is genetically determined and is a response of the skin to hormones. If the so-called acne on the tip of your nose is what you ...

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