Understanding Skin Disorders: Addressing White Patches and Itching
Skin Dear Dr. Huang, Over the past year, I have gradually developed large patches of white spots on my body, which become intensely itchy at night. During the day, exposure to sunlight also causes significant itching. The body hair on the white patches is slowly turning white an...
Dr. Huang Ruiyun Reply:
Hello: I apologize, but according to regulations, I cannot diagnose diseases online. Please visit a medical center or regional hospital's dermatology department for consultation. Additionally, there is no significant correlation between leukoplakia and vision, so it is essen...[Read More] Understanding Skin Disorders: Addressing White Patches and Itching
Unexplained Red Bumps on Abdomen: Causes and Solutions Explained
Unusual redness and swelling on the abdomen? Hello Doctor, about three to four days ago, I noticed some unexplained redness and swelling on my abdomen. It looks similar to the marks left by flea bites or mosquito bites, with about six or seven spots clustered together. However, t...
Dr. Mao Mingya Reply:
Hello, Xiaocao: The photo appears to show clustered blisters, which are commonly seen in conditions such as herpes. Herpes includes both herpes simplex and herpes zoster. Herpes simplex typically manifests locally around the mouth and genital area, but can also occur on other par...[Read More] Unexplained Red Bumps on Abdomen: Causes and Solutions Explained
Understanding Skin Issues: Managing Eczema and Finding the Right Sunscreen
My skin condition has been very poor lately? I have atopic dermatitis, so my skin tends to itch particularly severely in the winter, resulting in small patches of rough, red skin. Usually, these patches disappear as summer approaches, but this year my skin seems to be particularl...
Dr. Huang Ruiyun Reply:
Hello: This summer has been slow to arrive, and recently, many patients with atopic dermatitis have experienced worsening symptoms, which may be related to environmental and climate changes. It is advisable to see a dermatologist to differentiate the symptoms, as they may tempora...[Read More] Understanding Skin Issues: Managing Eczema and Finding the Right Sunscreen
Non-Hereditary Hair Loss and Acne Scars: Seeking Solutions
Non-genetic hair loss & extensive acne scars on the chest, back, and neck? Hello Doctor, I have two questions, and I appreciate your help. 1. My family does not have a history of baldness. In the past, I had a lot of hair, but a few years ago, I developed a habit of scratch...
Dr. Du Zhiqiang Reply:
Hello, for a 24-year-old individual who is energetic and physically active, if there is a significant presence of acne, it is important to consider whether this is a recent development, whether there is a tendency for oily skin, whether there has been prolonged pressure on the sk...[Read More] Non-Hereditary Hair Loss and Acne Scars: Seeking Solutions
Understanding White Spots on Fingernails: Causes and Concerns
Nail issues? Hello Doctor: I would like to ask why there are white spots appearing under the nail of my right index finger, while none of my other nails have this issue. Could it be a sign of a problem with an organ in my body or a deficiency of some kind? I would appreciate your...
Dr. Du Zhiqiang Reply:
Dear Dada: If there is a white spot at the base of the nail and it is only on one nail, it is unlikely to be a nutritional deficiency in a young person. If it is not due to water pollution, it is most likely a fungal infection. Please monitor whether the area has expanded within ...[Read More] Understanding White Spots on Fingernails: Causes and Concerns
Understanding and Treating a Bump on the Nose: Dermatologist Insights
There is an extra piece of flesh on the tip of the nose? I may have developed a small raised area on the center of my nose due to previous acne that didn't heal properly (I'm not entirely sure). It is a circular bump with a radius of 0.2 cm and protrudes about 0.05 cm (...
Dr. Du Zhiqiang Reply:
Dear Miss QQ, From the description, it is understood that young individuals who frequently develop acne may experience inflammation or squeezing, leading to scarring, which could result in hypertrophic scars or fibrotic lesions. A clinical diagnosis is necessary, and treatment o...[Read More] Understanding and Treating a Bump on the Nose: Dermatologist Insights
Understanding Laser Treatments for Facial Spots: Melasma vs. Freckles
Laser Spot Removal Since elementary school, I have developed spots on my face, mostly on the left side of my face and neck. Are these considered nevi or freckles? During laser surgery, should I ask the doctor to use a deeper laser wavelength? Would that help it heal faster? Can I...
Dr. Huang Ruiyun Reply:
Hello: The lesions that appear only on one side are usually nevi rather than freckles. To determine which type it is, a dermatologist needs to examine it in person. Nevi tend to be more persistent, and treating them with deeper or more aggressive methods does not necessarily lead...[Read More] Understanding Laser Treatments for Facial Spots: Melasma vs. Freckles
Understanding Chest Acne: Causes, Treatment, and Prevention Tips
Acne frequently appearing on the chest? I occasionally get large pimples on my chest that appear after a certain period of time. There aren't many, but they are quite deep and painful to the touch. Sometimes, I find it bothersome and end up squeezing them or cutting them ope...
Dr. Huang Ruiyun Reply:
Hello: It may not be acne but rather a sebaceous cyst. To confirm, please visit a dermatologist in person. Wishing you peace and good health.[Read More] Understanding Chest Acne: Causes, Treatment, and Prevention Tips
Understanding Persistent Acne: Why Does It Keep Coming Back?
Acne Hello, Doctor: I consider myself to be someone with moderate acne. During my puberty from ages 14 to 20, it was quite severe. Eating oily foods or peanuts tends to trigger breakouts. In recent years, I've been paying attention to my diet and facial hygiene, and as I mov...
Dr. Du Zhiqiang Reply:
Dear Jeri: From the description in your letter, the acne on your face has driven you to frustration. It is rare for someone to research their condition so thoroughly, which can lead to mental stress. Based on your description, you may be suffering from cystic acne and possibly an...[Read More] Understanding Persistent Acne: Why Does It Keep Coming Back?
Can Vitamin A Acid Help Improve Sun-Induced Dark Spots?
Please ask your question? Can the use of retinoic acid improve sun-induced dark spots? Thank you!
Dr. Huang Ruiyun Reply:
Hello: It will improve a little, but the effect is limited.[Read More] Can Vitamin A Acid Help Improve Sun-Induced Dark Spots?
Understanding Pigmented Scars from Cryotherapy: Causes and Solutions
Pigmented scars left by cryotherapy? Hello Dr. Huang: I have many moles on my body, which I find unattractive, so I have always wanted to have them removed. Previously, I did not do thorough research and was misled by a friend to go to a hospital where a doctor used liquid nitrog...
Dr. Huang Ruiyun Reply:
Hello! Without seeing the individual, it is difficult to determine whether it is a true scar or post-inflammatory hyperpigmentation. Generally speaking, cryotherapy with liquid nitrogen is unlikely to cause true scars; instead, it often results in hyperpigmentation, which will fa...[Read More] Understanding Pigmented Scars from Cryotherapy: Causes and Solutions
Managing Fungal Infections: Ketoconazole Use and Liver Health Concerns
Dermatological medications Hello Doctor: I have a fungal infection (tinea corporis) that covers a large area, approximately the entire back of my right upper arm, the inner thigh, and about three coin-sized spots on my chest with hyperpigmentation. I recently visited a dermatolog...
Dr. Huang Ruiyun Reply:
Hello: I suggest you still get a liver function test, as there are risks involved. Although the probability is low, from my personal perspective, tinea versicolor is merely unsightly and usually does not cause any discomfort or affect health. Even if it is treated orally, it may ...[Read More] Managing Fungal Infections: Ketoconazole Use and Liver Health Concerns
Understanding Skin Spots: Hormonal Imbalance or Dermatological Issue?
Generalized skin lesions? Hello Doctor: I have very fair skin, so I have always had a tendency to develop spots on my face. Recently, I have also been noticing more spots appearing on my body and limbs, and the number is increasing. I would like to ask if this could be due to hor...
Dr. Huang Ruiyun Reply:
Hello: It may not necessarily be related to hormones. I recommend you see a dermatologist. Thank you! Wishing you peace and good health.[Read More] Understanding Skin Spots: Hormonal Imbalance or Dermatological Issue?
Effective Laser Treatments for Freckles: What You Need to Know
Laser Since elementary school, there have been spots on the left side of the face and neck. Are they freckles? Which type of laser is most effective? Is a stronger laser treatment more effective? If no medication is applied after the laser treatment and the area is kept dry, will...
Dr. Huang Ruiyun Reply:
Hello: 1. It is not freckles; freckles are present on both sides, not just one side. 2. Ruby laser is the best; ruby-chromium laser and alexandrite laser are also acceptable. 3. Not necessarily. 4. No, applying an oily ointment or artificial skin will heal faster. 5. It can only ...[Read More] Effective Laser Treatments for Freckles: What You Need to Know
Understanding Alpha Hydroxy Acids: Benefits and Risks for Skin Care
Alpha hydroxy acid (AHA) 1. Is glycolic acid peeling effective for spots (approximately those that appear in elementary school and are only distributed on the left side of the face) and acne scars? 2. Can closed comedones be cleared with glycolic acid peeling? 3. Does glycoli...
Dr. Huang Ruiyun Reply:
Hello: 1. Ineffective. 2. May provide some degree of benefit; individual responses vary, and it takes multiple sessions to determine effectiveness. 3. Pay attention to hydration and sun protection to avoid such issues. 4. Focus on hydration and sun protection. 5. Be cautious of b...[Read More] Understanding Alpha Hydroxy Acids: Benefits and Risks for Skin Care
Understanding Acne Medications: Steroids, Application Tips, and Side Effects
Regarding acne medications? I visited a doctor for my acne, and they prescribed me topical and oral medications. Could you please help me determine if the topical medication Dgel contains steroids? Additionally, I have Adapalene for oral use, and Doxymycin in capsule form, which ...
Dr. Jiang Yujiao Reply:
Hello! Dgel: It is unclear what the "D" in Dgel refers to, but it is likely a type of antibacterial gel. Typically, acne medications are applied after lotion, directly onto the acne lesions. Adapalene is generally recommended to be applied in the evening, before bedtime...[Read More] Understanding Acne Medications: Steroids, Application Tips, and Side Effects
Understanding Skin Lesions: What to Know About Dark Spots and Changes
Macular degeneration? Hello Doctor, I developed a patch (light brown in color) on the left shoulder area during elementary school, which has been gradually expanding as I aged. I consulted with doctors several times, and they believed it would not continue to expand after puberty...
Dr. Jiang Yujiao Reply:
Yanping: Hello! Based on your symptom description, it seems to be a type of skin nevus, which in English is diagnosed as Becker's Nevus. It will not affect your health, and you can consult a dermatologist for an in-person examination when you return to Taiwan. Response from ...[Read More] Understanding Skin Lesions: What to Know About Dark Spots and Changes
Persistent Itchy Red Bumps on Neck: Causes and Treatment Options
Itchy neck? Hello Dr. Jiang: I have small red spots on my neck that become increasingly itchy when scratched. After applying a topical ointment from the clinic for 3 to 4 days, the condition recurs. This has been repeating for 2 to 3 years. I'm not sure what to do. What skin...
Dr. Jiang Zheen Reply:
1. Seek consultation with a dermatologist. 2. Spend time discussing with the physician to establish possible causes of the condition (including allergies, infections, insect bites, etc.). 3. Address the identified causes accordingly.[Read More] Persistent Itchy Red Bumps on Neck: Causes and Treatment Options
Are These Brown Spots on My Hand Age Spots or Something Else?
Is this considered a senile plaque? Hello Dr. Jiang: I have noticed several brown spots on the back of my hand, resembling the size of mung beans, with varying shades of color. I am unsure if these are age spots. My older brother, who is over ten years my senior, does not have th...
Dr. Jiang Yujiao Reply:
Hello: There are several coffee-colored spots on the back of your hand, approximately the size of mung beans, with varying shades. They are likely age spots. Laser treatment can be performed for cosmetic purposes, but it is not covered by health insurance. You are welcome to visi...[Read More] Are These Brown Spots on My Hand Age Spots or Something Else?
Understanding Nail Bed Spots: Should You Worry About Your Mole?
Is it also a question about moles? I would like to ask Dr. Jiang about a very light brown spot I accidentally discovered on the nail bed of my left thumb, located about 0.2 cm from the junction of the white part of the nail and the nail bed. The maximum diameter is less than 0.1 ...
Dr. Jiang Yujiao Reply:
Hello: I have discovered a very light brown spot. It is important to observe whether the spot remains fixed in one location or gradually moves over time. Generally, it is mostly pigment deposition, but melanoma can spread very quickly. Please consult a dermatologist for an evalua...[Read More] Understanding Nail Bed Spots: Should You Worry About Your Mole?