Understanding Skin Issues on Toes: Causes and Treatments
Toe skin issues Hello doctor, I have developed a thick layer of skin on the side of my toe. Initially, it was just that, but later a dark patch appeared near the nail. Now, another toe on the opposite foot has also developed a similar dark patch near the nail. Sometimes it hurts ...
Dr. Li Yufen Reply:
Hello: Due to insufficient resolution when enlarging the photo, it is uncertain whether it is a viral wart, lichen planus, or another issue. It is recommended that if the skin symptoms do not improve or worsen, you should consult a nearby dermatologist for diagnosis and treatment...[Read More] Understanding Skin Issues on Toes: Causes and Treatments
Can Ketoconazole Cream Cause Acne Breakouts? A Dermatology Concern
After applying the medication prescribed by the doctor for tinea versicolor, I started to develop acne? I have a sweat patch at the junction of my neck and shoulders. After taking medication for four weeks, my doctor prescribed a topical treatment for the sweat patch and advised ...
Dr. Li Yufen Reply:
Hello: The medication itself should not have side effects that cause acne. You might want to consider whether the ointment is being applied too thickly, which could lead to pore blockage and subsequently result in acne. Additionally, hot weather may cause sweat to accumulate arou...[Read More] Can Ketoconazole Cream Cause Acne Breakouts? A Dermatology Concern
Can You Combine AHA and Retinoids Without Skin Irritation?
The issue of combining retinoic acid with alpha hydroxy acids (AHAs)? If the skin does not feel irritated, can alpha hydroxy acids (AHAs) be applied after using retinoic acid (A acid)?
Dr. Li Yufen Reply:
Hello: It is recommended that you use a single type of acid on your skin at a time. Thank you![Read More] Can You Combine AHA and Retinoids Without Skin Irritation?
Understanding the Recovery Process of Jock Itch: What to Expect
Recovery from tinea cruris (jock itch) condition? It is common for the symptoms of tinea cruris (jock itch) to improve with treatment, such as topical antifungal medication. However, it is also possible for the affected area to experience some peeling and continued redness as the...
Dr. Wu Yuxin Reply:
Without actually seeing the lesion, it is impossible to determine the issue. If it is very concerning, please seek medical attention as soon as possible. Only after an examination can the problem be identified and addressed.[Read More] Understanding the Recovery Process of Jock Itch: What to Expect
Understanding Skin Reactions: Managing Antihistamine Use After Thyroid Medication
Medication Consultation I would like to ask a professional physician. I previously experienced itching as a side effect from taking medication for hyperthyroidism (carbimazole), so I have been taking antihistamines (Doxepin) for over two years. Recently, I have been gradually red...
Dr. Wu Yuxin Reply:
Doxepin is primarily a long-acting medication, and long-term use of antihistamines may also lead to a decrease in histamine levels in the blood.[Read More] Understanding Skin Reactions: Managing Antihistamine Use After Thyroid Medication
Understanding and Treating Moles on the Penis and Scrotum
Penile melanocytic nevus Hello Doctor: I have several moles on my scrotum and foreskin. I would like to ask: 1. Can the moles on the scrotum and foreskin be surgically removed (due to concerns about recurrence or malignancy)? If not, are there other methods available? 2. Can the ...
Dr. Wu Yuxin Reply:
1. Surgery for excision is recommended due to concerns about potential malignancy. 2. It is possible, but not highly necessary.[Read More] Understanding and Treating Moles on the Penis and Scrotum
Finasteride 5mg: Hair Growth Benefits and Skin Reactions Explained
Regarding the use of Finasteride 5mg and skin issues? 1. I have been taking Finasteride 5mg (not sure if the Chinese name is correct) at a dosage of 1/4 tablet daily for nearly a year, and I have noticed improvement in my male pattern baldness and hair density. My hair has increa...
Dr. Wu Yuxin Reply:
1. It is recommended to continue taking the medication; otherwise, hair loss will persist. 2. No lesions were observed, so it is not possible to determine the issue. If it is very bothersome, please seek medical attention promptly.[Read More] Finasteride 5mg: Hair Growth Benefits and Skin Reactions Explained
Understanding Warts: Prevention and Care for Skin Around Warts
Regarding viral warts? I have a wart on my finger. I usually cover it with transparent tape when I go out in the morning, but today when I removed it, I noticed that it seems to have pulled off some of the surrounding skin as well. The wart is still there. I would like to ask: 1....
Dr. Wu Yuxin Reply:
1. It is possible, and close monitoring is required. 2. Caution should be exercised during use, as it may spread; the principle is to not exceed the extent of the lesion.[Read More] Understanding Warts: Prevention and Care for Skin Around Warts
How Long Does It Take for Scratches to Heal and Scars to Fade?
How long does it take for a scar from a scrape to fade? Hello, around mid-April this year, I had a scrape on my neck that broke the skin. After that, I didn't pay much attention to care or sun protection. By the end of July, I noticed a discolored scar on my neck, likely due...
Dr. Wu Yuxin Reply:
The primary focus should be on sun protection, while the duration for complete recovery will depend on the initial degree of pigmentation.[Read More] How Long Does It Take for Scratches to Heal and Scars to Fade?
Understanding Itchy Rashes: Causes and Treatments for Skin Issues
Itchy rash? Hello Doctor, I started experiencing a rash on the right side of my lower back last week, which is itchy. Eventually, the rash developed into small blisters, and pressing on the blisters causes pain. However, I do not have any other pain symptoms such as neuropathic p...
Dr. Wu Yuxin Reply:
No lesions were observed, so it is difficult to determine the issue. If you are very concerned, please seek medical attention promptly.[Read More] Understanding Itchy Rashes: Causes and Treatments for Skin Issues
Can Ozone Water Be Used for Skin and Oral Care Without Harm?
Ozone water and skin issues? Can ozone water be used for washing the face? Will it cause too much damage to the skin? Also, can ozone water be used for rinsing the mouth? Will it cause significant harm to the oral mucosa and tongue?
Dr. Wu Yuxin Reply:
Not necessarily.[Read More] Can Ozone Water Be Used for Skin and Oral Care Without Harm?
Understanding Skin Issues: Can Jock Itch Be Transmitted During Intimacy?
Genital issues My boyfriend had a small patch of tinea corporis on his neck (characterized by a ring of red raised lesions with a flat center). He didn't treat it specifically since it wasn't itchy and there were no other affected areas. After not seeing each other for ...
Dr. Wu Yuxin Reply:
Using light tapping with toner for tinea corporis is ineffective; it is recommended to seek medical attention.[Read More] Understanding Skin Issues: Can Jock Itch Be Transmitted During Intimacy?
Understanding A Acid: Managing Oily Skin and Rough Texture
A acid issues and concerns? Doctor, I would like to ask about my use of topical retinoids. I have been using them for over a year. Initially, I would apply some retinoid and then follow with a serum, but my skin still felt oily and I continued to break out. Recently, I went back ...
Dr. Wu Yuxin Reply:
It may be due to insufficient application of skincare products, and with the arrival of autumn, moisture loss in the skin has occurred. It is recommended to continue using the original skincare products.[Read More] Understanding A Acid: Managing Oily Skin and Rough Texture
How to Prepare Your Skin Before Applying Topical Retinoids
Pre-treatment actions before applying A acid? I have acne and I am about to start using topical retinoids. The instructions say to apply it before bedtime, but I wash my face before showering, then apply a hydrating product followed by aloe vera or hyaluronic acid, and then Vasel...
Dr. Wu Yuxin Reply:
It can be applied directly.[Read More] How to Prepare Your Skin Before Applying Topical Retinoids
Understanding Scabies in Infants: Treatment and Care Tips
Infant scabies Hello, Dr. Wu. My child has been undergoing treatment for scabies for about three weeks now. Since our whole family is being treated, my child is using permethrin cream while I am taking medication and applying a topical treatment. During our follow-up appointment ...
Dr. Wu Yuxin Reply:
If there are new lesions, caution is necessary, and further confirmation may be required. Old lesions can sometimes take weeks or even months to resolve.[Read More] Understanding Scabies in Infants: Treatment and Care Tips
Understanding Scabies in Infants: Treatment and Care Tips
Infant scabies Hello, Dr. Wu. My child has been undergoing treatment for scabies for about three weeks now. Since our whole family is being treated, my child is using permethrin cream while I am taking medication and applying a topical treatment. During our follow-up appointment ...
Dr. Wu Yuxin Reply:
If there are new lesions, caution is advised, and further confirmation may be necessary. Old lesions may take weeks or even months to resolve.[Read More] Understanding Scabies in Infants: Treatment and Care Tips
Is It Eczema? Understanding Red, Itchy Bumps on Your Skin
Is this eczema? Hello Doctor, recently I have developed red, bumpy spots on the back of my hand that sometimes itch. They subsided yesterday but have reappeared today. I'm not sure if it is eczema, so I would like to ask for your opinion. The photo can be found at the follow...
Dr. Wu Yuxin Reply:
Medical regulations state that "physicians must personally examine patients before providing treatment or prescribing medications," and therefore, online diagnosis is not permissible. If you are experiencing significant distress, it is advisable to seek medical attentio...[Read More] Is It Eczema? Understanding Red, Itchy Bumps on Your Skin
Understanding Hard Bumps on the Foreskin: Causes and Solutions
Prepuce issues Hello, there is a hard lump on my foreskin. It generally does not hurt or itch, and it has been present for a while. I initially thought it would go away on its own, but it hasn't. What could this be? Thank you.
Dr. Wu Yuxin Reply:
Medical regulations state that "a physician must personally examine a patient before providing treatment or prescribing medication," and therefore, online diagnosis is not permitted. If you are experiencing significant distress, it is advisable to seek medical attention...[Read More] Understanding Hard Bumps on the Foreskin: Causes and Solutions
Understanding AHA Use: Addressing Acne and Skin Flaking Issues
Issues related to the use of retinoic acid? Hello, doctor. I would like to ask you a few questions. I have been using tretinoin as a skincare product daily for about a year and a half. My skin type is mainly combination, and I tend to get acne. During the mid-phase of using it, m...
Dr. Li Yufen Reply:
Hello: For a detailed introduction to acne, you can refer to the article from Med's Good Friend at https://www.medpartner.club/acne-cure-care-myth/. 1. There are many causes of acne, and the use of retinoids (A acid) does not lead to the development of acne. 2. It may be due...[Read More] Understanding AHA Use: Addressing Acne and Skin Flaking Issues
Dealing with Itchy Skin After Dermatology Cream: What to Know
Itching on the face after applying a topical ointment prescribed by a dermatologist? After the first phase of medication application, there were no discomforts. After the follow-up visit, I began the second phase, which included an additional ointment. After the first application...
Dr. Wu Yuxin Reply:
For inquiries regarding the clinic's medication codes, please consult the prescribing physician or the dispensing pharmacist.[Read More] Dealing with Itchy Skin After Dermatology Cream: What to Know