Comparing Efficacy of L-Ascorbic Acid and 3-in-1 Ointment for Skin Discoloration
Skin darkening caused by scar healing? Due to localized skin darkening caused by scar healing, I have learned through online research that L-ascorbic acid products and a certain 3-in-1 ointment can improve this darkening. Regarding the efficacy of these two products in lightening...
Dr. Huang Ruiyun Reply:
The 3-in-1 treatment is more effective, but it also has greater side effects. Health insurance does not cover it, so it must be paid out of pocket.[Read More] Comparing Efficacy of L-Ascorbic Acid and 3-in-1 Ointment for Skin Discoloration
Understanding Acne, Blackheads, and Skin Sensitivity: Causes and Solutions
Acne ~ Blackheads Sometimes I get acne that leaves dark spots, resembling freckles, without squeezing them. A friend mentioned that it might be because my skin is thin. Is that true? How can I lighten these spots? Sometimes I have bumps that look like acne but feel painful to the...
Dr. Zheng Lizhen Reply:
Hello: 1. After inflammation, there is a possibility of pigment deposition, which is not related to skin thickness. You can apply some L-ascorbic acid (Vitamin C) and sunscreen to help lighten the pigmentation. 2. Please visit a dermatology specialty clinic for an accurate diagno...[Read More] Understanding Acne, Blackheads, and Skin Sensitivity: Causes and Solutions
Understanding Viral Warts: Treatment, Concerns, and Prevention Tips
There are five warts that have appeared on the right hand? About 2 to 3 months ago, a growth appeared on the flesh of my right middle finger. At first, I thought it was something similar to a corn on my mother's foot, but it kept growing larger and developed some dark spots....
Dr. Huang Ruiyun Reply:
It usually takes two to three weeks to fall off. It's not that easily transmissible; otherwise, your left hand and face would have already been affected. Stop overthinking.[Read More] Understanding Viral Warts: Treatment, Concerns, and Prevention Tips
Managing Acne with Isotretinoin: Common Concerns and Tips
Isotretinoin Hello Dr. Jiang, I am currently a freshman. Since my senior year in high school, I have been experiencing persistent acne on my cheeks. I once saw a doctor who prescribed me tetracycline, which was very effective at first, but after the acne cleared up, I stopped tak...
Dr. Jiang Zheen Reply:
Oral isotretinoin can sometimes cause an initial worsening of acne during the first month of treatment for some individuals. I believe you can stop using your topical retinoids. Dr. Lin Bing-Huang is my senior, and it would be better for you to write down your questions and show ...[Read More] Managing Acne with Isotretinoin: Common Concerns and Tips
Understanding Dark Spots on the Genitals: Causes and Concerns
On the genitals? I have several black or brown spots on my genital area. What could they be? They are not painful or itchy, and they have been there for many years. P.S. They are flat and resemble spots, not raised.
Dr. Jiang Zheen Reply:
It could be a type of mole or nevus; either way, wishing you peace and safety.[Read More] Understanding Dark Spots on the Genitals: Causes and Concerns
Understanding Flea Bites: Red Spots and Skin Reactions Explained
After a flea bite, it develops into a red macule? I had over twenty bites on my foot from fleas, which were large, red, and swollen. I visited a dermatologist, took medication, and received an injection. The itching lasted for a week before it gradually subsided. After it healed,...
Dr. Huang Ruiyun Reply:
Insect bites can trigger an immune response, which varies in intensity among individuals. This reaction typically resolves on its own within a few weeks, while hyperpigmentation may take several months to fade. If there is no itching, it can be left alone; however, if appearance ...[Read More] Understanding Flea Bites: Red Spots and Skin Reactions Explained
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.[Read More] Effective Ways to Fade Hyperpigmentation Scars on Your Skin
Effective Skincare Tips for Clear, Radiant, and Acne-Free Skin
I want to take care of my skin? To maintain healthy skin that appears rosy and fair without acne, consider the following skincare tips: 1. **Cleansing**: Use a gentle cleanser suitable for your skin type to remove dirt and impurities without stripping natural oils. 2. **Moistur...
Dr. Huang Ruiyun Reply:
During the day, apply sunscreen, and at night, use alpha hydroxy acids (AHAs). However, genetic predisposition, gender, and individual constitution are significant factors that determine skin type, so results may vary from person to person. It is not advisable to set such perfect...[Read More] Effective Skincare Tips for Clear, Radiant, and Acne-Free Skin
Understanding Neck Acne: Causes, Treatments, and Prevention Tips
Acne on the neck? Hello Dr. Jiang: Two months ago, I had persistent acne on my face, primarily around my nose and chin. I visited a dermatologist who prescribed both oral and topical medications. After about three days of treatment, the acne cleared up, but the affected areas bec...
Dr. Jiang Zheen Reply:
In general, acne treatment typically requires at least 2-3 months, so you need to continue treatment for a longer period to prevent recurrence. It is also possible for acne to occur on the neck, but it rarely causes significant itching. Wishing you well.[Read More] Understanding Neck Acne: Causes, Treatments, and Prevention Tips
Why Are There Dark Spots Under My Armpits? Causes and Solutions
Why do I have dark spots under my armpits? Could you tell me what this could be? I previously had dark spots in my armpit, and now they have increased in number. They are not painful or itchy.
Dr. Huang Ruiyun Reply:
Online diagnosis is not permitted; if you are very troubled, please visit a dermatologist in person.[Read More] Why Are There Dark Spots Under My Armpits? Causes and Solutions
Understanding Skin Discoloration: Causes and Treatments for Dark Spots and Lips
excuse me? I have had brown spots on my palms and arms since childhood, some of which are in larger patches. What could this issue be, and how can it be treated? Additionally, my lips are very dark; could this be related to smoking? How can this be treated? Thank you!
Dr. Huang Ruiyun Reply:
Online diagnoses are not permitted; if you are truly concerned, please visit a dermatologist in person. Lip color is not necessarily related to smoking, but smoking is a major enemy of beauty, so think carefully about it.[Read More] Understanding Skin Discoloration: Causes and Treatments for Dark Spots and Lips
Understanding Dark Spots on the Penis: Causes and Concerns
Black The appearance of a small dark spot on the glans may be due to various reasons, including hyperpigmentation, a benign mole, or other skin conditions. It is important to note that such changes are not necessarily indicative of HIV or any sexually transmitted infection (STI)....
Dr. Chen Yiying Reply:
Hello: In response to your question... HIV does not manifest solely through pigmentation changes on the glans. You should consult a dermatologist for a proper diagnosis. However, you are indeed in a high-risk group for HIV, so please practice safe sex and consider getting tested ...[Read More] Understanding Dark Spots on the Penis: Causes and Concerns
Sudden Dark Spots on Inner Thigh: What You Need to Know
Sudden appearance of dark spots on the inner thigh? I noticed some faint brown spots on the inner side of my thigh near the groin today. It seems to have appeared recently. There is no redness or swelling, and the skin is generally darker in that area, but I have never had spots ...
Dr. Chen Yiying Reply:
Hello: In response to your question, given your age, it is most likely to be tinea versicolor or tinea cruris. However, a definitive diagnosis should be made by a physician through a personal examination before any treatment is prescribed.[Read More] Sudden Dark Spots on Inner Thigh: What You Need to Know
Understanding Blood Stripes Under Nails: Causes and Solutions
Blood streaks appearing under the nail? I apologize for the inconvenience. I would like to ask about a concern I have. I frequently notice fine, elongated blood streaks inside my fingernails, and I experience sharp pain in each finger. What could be the cause of this? Is there an...
Dr. Jiang Zheen Reply:
You should see a dermatologist. Wishing you well.[Read More] Understanding Blood Stripes Under Nails: Causes and Solutions
How to Treat Dark Spots After Jock Itch: Expert Dermatologist Advice
Please ask your question! Doctor, I had tinea cruris a long time ago, and the symptoms have not recurred since then. However, I have noticed darker marks on both sides of my thigh and groin area. Is there any way to eliminate these marks?
Dr. Jiang Zheen Reply:
This is post-inflammatory hyperpigmentation, which can be difficult to fade. You might try applying a hydroquinone cream. Wishing you well.[Read More] How to Treat Dark Spots After Jock Itch: Expert Dermatologist Advice
Understanding the Connection Between Nail Fungus and Skin Discoloration
Onychomycosis Hello Dr. Chen, I have been troubled by onychomycosis (fungal nail infection) for many years. Initially, I thought it was just a minor issue, but recently I noticed many dark spots on my calves. Upon further observation, it seems to be slowly spreading upwards. It s...
Dr. Chen Yiying Reply:
Hello: In response to your question, first of all, onychomycosis not only affects aesthetics but can also be contagious to oneself and others. Regardless of whether the lesions on your legs are caused by fungi, if onychomycosis is confirmed, young individuals should consider aggr...[Read More] Understanding the Connection Between Nail Fungus and Skin Discoloration
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...[Read More] Understanding Arm Bumps: Causes and Treatments for Skin Concerns
Post-Summer Skin Issues: Painful Sensations and Red Spots Explained
After the summer, there is an abnormal stinging sensation in the skin, and there are also red spots that appear regularly. (Forwarded from the Department of Health) Hello, doctor. Every year after summer ends and autumn begins, whenever my body gets hot, I experience a tingling s...
Dr. Huang Ruiyun Reply:
Hello: The tingling sensation on your body may be a type of urticaria, which can be triggered by heat. Additionally, red spots cannot be diagnosed online. For both issues, it is recommended to consult a dermatologist. Dr. Huang Rui-Yun, Department of Dermatology, Hsinchu Hospital...[Read More] Post-Summer Skin Issues: Painful Sensations and Red Spots Explained
Understanding Dark Skin Patches: Causes and Treatment Options
The skin color is dark? Hello, doctor: I have noticed that the skin color on my knees, especially under my arms, is darker. Is this a sign of a disease? I've heard that this phenomenon can occur in obese individuals, but I have always been of average build. I've also he...
Dr. Zheng Lizhen Reply:
Hello: It could be simply a case of hyperpigmentation or acanthosis nigricans, but a physical examination is necessary to confirm the diagnosis. Sincerely, Dr. Cheng Li-Chen, Dermatology Department, Taoyuan Hospital, Ministry of Health and Welfare.[Read More] Understanding Dark Skin Patches: Causes and Treatment Options
Skin Concerns: What to Do When You Suspect Skin Cancer?
What should I do? My boyfriend used to think that the dark spots on his body were just regular heat rash, especially since they would sometimes itch. Over time, he ignored them, but recently it seems that the dark areas have been getting larger, and sometimes they even hurt. He h...
Dr. Huang Ruiyun Reply:
I'm sorry, but the information you provided cannot answer the question. There are many types of skin cancer, and the prognosis varies depending on the diagnosis and pathology report. If the hospital where he is receiving treatment is a medical center, that should be sufficie...[Read More] Skin Concerns: What to Do When You Suspect Skin Cancer?