Understanding the Impact of AHA and Retinoids on Skin Microvascular Health
A acid and azelaic acid issues? Hello, doctor. I have seen many discussions online about the long-term use of acids such as retinoic acid and azelaic acid causing the appearance of telangiectasia on the face. However, after reading educational articles, I learned that these acids...
Dr. Li Yufen Reply:
Hello: Thinning of the stratum corneum does not cause telangiectasia. The most common reasons for facial telangiectasia may include having a rosacea-prone skin type or the use of topical corticosteroids. If the skin condition does not improve or worsens, it is advisable to consul...[Read More] Understanding the Impact of AHA and Retinoids on Skin Microvascular Health
How Long Does It Take for Antibiotics to Control an Infected Cyst?
How long does it take for medication to control an inflamed sebaceous cyst? Hello Doctor: I have a sebaceous cyst on the back of my neck that has been present for about 3.4 years. Recently, it suddenly became larger and painful, and I even noticed a little pus coming out. The nex...
Dr. Li Yufen Reply:
Hello: The severity of a ruptured cyst with inflammation can vary greatly in clinical practice. If symptoms such as redness, swelling, heat, and pain become increasingly pronounced, it is advisable to return for follow-up treatment sooner. During dressing changes, you can use pov...[Read More] How Long Does It Take for Antibiotics to Control an Infected Cyst?
Managing Itchy Groin in Children: Tips for Parents
Groin itching Hello Dr. Lee, I apologize for bothering you. My 10-year-old daughter has been experiencing some issues recently. With the hot weather, I've noticed that she tends to scratch her groin and external genital areas at night, which has caused some redness and min...
Dr. Li Yufen Reply:
Hello: The summer climate in Taiwan is humid and hot. To prevent itching in children's groin area, it is advisable to wear loose shorts or skirts, and to choose cotton underwear. Limit the time spent sitting on chairs, and take breaks to stand and move around. After using th...[Read More] Managing Itchy Groin in Children: Tips for Parents
Is Hair Loss Linked to Low Ferritin Levels in Women?
Hair loss and iron deficiency? Hello doctor, I am experiencing hair loss issues. Earlier this year, I had some improvement, but I started losing hair again in March. I had a blood test that showed my ferritin level is 37 ng/mL. The normal range for females seems to be 11.0-306.8 ...
Dr. Li Yufen Reply:
Hello: Based on the data, there doesn't appear to be an issue with iron deficiency anemia. There are many causes of hair loss, including infections, metabolic conditions, and autoimmune disorders that also need to be ruled out. If the hair loss does not improve or worsens, i...[Read More] Is Hair Loss Linked to Low Ferritin Levels in Women?
Understanding Small White Bumps on Heels After Pressure: A Dermatology Insight
A small white bump on the heel that appears when pressure is applied? Hello doctor, I would like to ask about small, raised white spots that appear on my heel after applying pressure while standing (they are not present when relaxed). There is no sensation when I touch or press o...
Dr. Wu Yuxin Reply:
Without actually seeing the skin lesions, it is not possible to confirm the diagnosis. Please consult a nearby dermatologist for evaluation and treatment.[Read More] Understanding Small White Bumps on Heels After Pressure: A Dermatology Insight
Understanding Skin Bumps Near the Knee: Causes and Concerns
There is a flesh-colored bump near the knee? Hello doctor, today I noticed a skin-colored bump near my left knee. The color is slightly darker than my skin, and it is about 0.2 centimeters in size. I would like to ask what this could possibly be. I was thinking that if it is not ...
Dr. Wu Yuxin Reply:
Please seek a nearby dermatologist for diagnosis and treatment, as online consultations are not available here.[Read More] Understanding Skin Bumps Near the Knee: Causes and Concerns
Understanding Skin Bumps Near the Knee: Causes and Concerns
There is a skin-colored bump near the knee? Hello doctor, today I noticed a skin-colored bump near my left knee. The color is slightly darker than my skin, and it is about 0.2 centimeters in size. I would like to ask what this could possibly be. I was thinking that if it is not a...
Dr. Wu Yuxin Reply:
Please seek a nearby dermatologist for diagnosis and treatment, as online consultations cannot be conducted here.[Read More] Understanding Skin Bumps Near the Knee: Causes and Concerns
Understanding Small White Bumps on Heels After Pressure: A Dermatology Insight
A small white bump on the heel that appears when pressure is applied? Hello doctor, I would like to ask about small white bumps that appear on my heel after applying pressure while standing (they are not present when relaxed). There is no sensation when I touch or squeeze them.
Dr. Wu Yuxin Reply:
Without actually seeing the skin lesions, it is not possible to confirm the diagnosis. Please consult a nearby dermatologist for evaluation and treatment.[Read More] Understanding Small White Bumps on Heels After Pressure: A Dermatology Insight
Understanding Persistent Skin Issues: Causes and Solutions Explained
I'm sorry, but I need more context or specific content to provide a translation Thank you for the doctor's response, but I still want to know why this situation has occurred. There are no signs of fading; it doesn't itch, but it doesn't look very good. I would...
Dr. Wu Yuxin Reply:
Without actually seeing the skin lesions, it is not possible to confirm the diagnosis. Please consult a nearby dermatologist for evaluation, as an online diagnosis cannot be provided here.[Read More] Understanding Persistent Skin Issues: Causes and Solutions Explained
Small Bump in Anal Fold: What Could It Be?
There is a very small nodule located subcutaneously in the anal fold? Hello Dr. Wu: About a month ago, I noticed a very small, hard lump under the skin in the left lower fold of my anal area, approximately 0.5 to 1 millimeter in size. It feels a bit itchy when I touch it repeated...
Dr. Wu Yuxin Reply:
Without actually seeing the skin lesions, it is not possible to confirm the diagnosis. Please consult a nearby dermatologist for evaluation and treatment.[Read More] Small Bump in Anal Fold: What Could It Be?
Understanding Insect Bites: Symptoms and Treatment for Skin Issues
Insect bites? I would like to ask about my boyfriend, who is a soldier in Matsu. He suddenly discovered multiple bumps on his arms that resemble mosquito bites. Initially, they were not itchy, but after a day or two, they started to itch and have worsened without improvement. The...
Dr. Wu Yuxin Reply:
Without seeing any lesions, it is truly impossible to confirm.[Read More] Understanding Insect Bites: Symptoms and Treatment for Skin Issues
Understanding Moles: Risks, Removal Options, and Expert Advice
Inquiry Consultation Dear Dr. Wu, As I age, I have noticed that I seem to have a "multiple mole" constitution. For instance, yesterday (May 18), I discovered a (presumably) compound nevus on the outer side of my left buttock, measuring approximately 0.3 to 0.4 cm, slig...
Dr. Wu Yuxin Reply:
If you are concerned about potential lesions, please consult a dermatologist to check for any possible abnormalities. Sometimes, a biopsy may be necessary to confirm the diagnosis.[Read More] Understanding Moles: Risks, Removal Options, and Expert Advice
Persistent Lip Swelling After Accident: Seeking Effective Treatment Options
Five years ago, I was in a car accident that caused swelling in my lower left lip, which has not gone down? I had a car accident before and my left lower lip has not healed properly. It feels like there is a lump inside my left lower lip, and when I smile, my mouth looks uneven. ...
Dr. Wu Yuxin Reply:
To effectively assess the condition of scars, the treatment methods for raised scars and depressed scars are completely different.[Read More] Persistent Lip Swelling After Accident: Seeking Effective Treatment Options
Can You Use Scar Gel on Skin Discoloration After Monkeypox Vaccine?
Skin pigmentation changes after receiving the monkeypox vaccine? Hello Doctor, I received the monkeypox vaccine (intradermal injection) on April 25, and it was administered on my left forearm. It has been four weeks since the vaccination, and the injection site no longer shows an...
Dr. Wu Yuxin Reply:
Beshuren gel is effective for scars, but it is not effective for simple hyperpigmentation.[Read More] Can You Use Scar Gel on Skin Discoloration After Monkeypox Vaccine?
Can You Eat Oranges and Citrus Fruits with Urticaria?
Can citrus fruits such as oranges and tangerines be consumed by individuals with urticaria? Hello, doctor. I was diagnosed with urticaria after visiting a dermatologist in the past two days. The educational materials provided at the dermatology clinic did not mention whether citr...
Dr. Li Yufen Reply:
Hello: For a detailed introduction to urticaria, you can refer to the article by Med's Good Friend at https://www.medpartner.club/urticaria-treatment-prevention-introdution/. The causes of urticaria are very diverse and are not necessarily triggered by food. If there has bee...[Read More] Can You Eat Oranges and Citrus Fruits with Urticaria?
Flea Bites: Understanding Skin Dryness and Irritation After Bites
The skin at the site of flea bites is dry and cracked? Hello, Doctor: I have a cat at home, and every April, we encounter flea problems. After being bitten by fleas, I develop a swollen bump about the size of a thumb, with a white ring around it, and it itches intensely. The swel...
Dr. Li Yufen Reply:
Hello: The appearance of dry, flaky, and wrinkled skin after an insect bite is likely due to significant damage to the stratum corneum following skin inflammation, resulting in a loss of moisture retention function. It is advisable to regularly apply skin repair creams or moistur...[Read More] Flea Bites: Understanding Skin Dryness and Irritation After Bites
Understanding Jock Itch: Causes, Treatments, and Recurrence Prevention
Tinea corporis (ringworm) with pruritus? Tinea corporis is often difficult to treat; while medication can be effective, stopping the treatment may lead to a recurrence. I am currently taking griseofulvin.
Dr. Li Yufen Reply:
Hello: Taiwan's island climate is relatively warm and humid, which facilitates the growth of fungi, leading to recurrent cases of tinea cruris. It is recommended to keep the skin dry and breathable as much as possible. After sweating, take a shower promptly, and make sure to...[Read More] Understanding Jock Itch: Causes, Treatments, and Recurrence Prevention
Post-Treatment Care for Skin Abscess: What to Expect
After the treatment of a furuncle? Hello, doctor. I couldn't find any similar cases online, so I would like to ask you about my situation. Recently, I had a boil on my buttocks, and after visiting a dermatologist, I was prescribed medication and topical treatment. The swelli...
Dr. Wu Yuxin Reply:
It could be a scar, or it might be that there is already a cyst inside. It's necessary to have a face-to-face consultation with a physician for confirmation.[Read More] Post-Treatment Care for Skin Abscess: What to Expect
Post-Treatment Concerns: Hard Spot After Boil Healing
After the treatment of a furuncle? Hello, doctor. I couldn't find any similar cases online, so I would like to ask you about my situation. I recently had a boil on my buttocks, and after visiting a dermatologist, I was prescribed medication and topical treatment. The swellin...
Dr. Wu Yuxin Reply:
We need to see what it is. It could be a scar, or there might already be a cyst inside. It's necessary to have a physician confirm this in person.[Read More] Post-Treatment Concerns: Hard Spot After Boil Healing
Understanding Black Hard Bumps on Your Back: Causes and Concerns
Black hard lumps on the back? Hello, doctor! I have a grayish-black round lump on my back, approximately 1 centimeter in diameter. I'm not sure how long it's been there, but it should have been for several years. It doesn't hurt or itch when pressed, and it's ...
Dr. Wu Yuxin Reply:
It is not possible to make a judgment this way; it is recommended to consult a dermatologist nearby for an examination.[Read More] Understanding Black Hard Bumps on Your Back: Causes and Concerns