Brown Spot in One Armpit: Causes, Itching, and Odor Solutions
A brown spot has appeared on one side of the armpit, which is itchy and has an odor? A brown patch has appeared in one armpit, which is itchy and has an odor. There was no odor before the brown patch appeared, and the individual typically does not sweat much. What could be the ca...
Dr. Li Yufen Reply:
Hello: Based solely on the textual description, it is not possible to accurately diagnose a skin condition. The most common causes of brown spots in the armpit are tinea corporis or tinea versicolor, but there may be other conditions as well. If the skin condition does not improv...[Read More] Brown Spot in One Armpit: Causes, Itching, and Odor Solutions
Understanding Shingles: Symptoms, Treatment, and Dietary Considerations
Shingles rash Hello doctor, two days ago I developed something on my back (attached is a picture). Today, when I visited a dermatologist, the doctor believed it was not shingles, but was also uncertain about what it could be (it might be a reaction to an insect bite). Could you p...
Dr. Wu Yuxin Reply:
I have not seen your skin symptoms in person, and I cannot make a diagnosis based solely on photographs. Therefore, I do not have any specific recommendations regarding the prescription given by the physician who examined you. Sometimes, skin conditions can change over the course...[Read More] Understanding Shingles: Symptoms, Treatment, and Dietary Considerations
Understanding Lip Swelling and Pain: Causes and Solutions
Swollen and painful lips? Hello Dr. Wu: I have been experiencing recurrent discomfort in my lips for three years. My lips often swell, and the mucosa feels painful. Sometimes my gums also swell and hurt, making brushing my teeth extremely painful. The toothpaste feels very cool, ...
Dr. Wu Yuxin Reply:
Without actually seeing your lips, I cannot provide an answer. If it is causing you distress, it is best to seek medical treatment promptly.[Read More] Understanding Lip Swelling and Pain: Causes and Solutions
Can Home IPL Hair Removal Devices Treat Keratosis Pilaris?
Intense Pulsed Light (IPL) Hair Removal Device Can keratosis pilaris be treated with an at-home IPL hair removal device? Is keratosis pilaris considered a form of uneven skin tone?
Dr. Wu Yuxin Reply:
There is not much effect, and it is not considered uneven skin tone. It can be classified as a condition of abnormal keratinization.[Read More] Can Home IPL Hair Removal Devices Treat Keratosis Pilaris?
Understanding Yellow Nails: Causes and When to Seek Help
Yellowing of the nails? Hello, doctor. I have already seen a dermatologist who confirmed that the tips of my fingers and toes are indeed yellow, but it is not a fungal infection. The doctor suspects it may be due to food or other substances causing staining. However, since this h...
Dr. Wu Yuxin Reply:
There are indeed many diseases that can cause yellowing of the nails, but there are also many cases where the underlying cause remains unidentified. However, without actually seeing your condition, I cannot provide much advice, as the most important aspect of diagnosing skin dise...[Read More] Understanding Yellow Nails: Causes and When to Seek Help
Dealing with Hangnails: Causes, Care Tips, and Treatment Options
I have a lot of hangnails on my fingers? I’m wondering if I’m washing my hands too often. During the pandemic, I wash my hands every time I touch shared objects, and when I can’t wash my hands, I use hand sanitizer. Could this be causing my fingers to become too dry and develop h...
Dr. Wu Yuxin Reply:
I think using hand cream properly should be sufficient.[Read More] Dealing with Hangnails: Causes, Care Tips, and Treatment Options
Understanding Burning Sensation on the Side of Your Body: Causes and Solutions
Burning sensation I experienced a burning sensation on the left side of my back while riding the bus. What could be the cause?
Dr. Li Yufen Reply:
Hello: Based solely on the textual description, it is not possible to accurately diagnose a skin condition. It is advisable to first observe whether the burning sensation occurs repeatedly or is a one-time event. If the condition does not improve or worsens, it is recommended to ...[Read More] Understanding Burning Sensation on the Side of Your Body: Causes and Solutions
Itchy Hairy Areas on the Vulva: Which Specialist to Consult?
Itchy areas in the pubic region with hair growth? If you are experiencing itching in the area above the vulva where hair grows, you may want to consult a dermatologist. It is true that gynecologists may have different approaches to diagnosis and treatment, and while they may pres...
Dr. Li Yufen Reply:
Hello: If the condition of the vulvar skin does not improve or worsens, it is recommended to consult a nearby dermatologist for diagnosis and treatment. Thank you![Read More] Itchy Hairy Areas on the Vulva: Which Specialist to Consult?
Understanding Scabies: Misdiagnosis, Treatment Challenges, and Recovery
Scabies issues? Hello Doctor, I previously had a scabies infection that did not improve after several months of treatment, and I consulted different doctors who diagnosed me with eczema, fungal infections, and sweat dermatitis. It wasn't until April of this year, when I retu...
Dr. Wu Yuxin Reply:
You need to see it to know; the symptoms of scabies and dyshidrotic eczema can be quite similar, and it is necessary to examine other areas to make a definitive diagnosis.[Read More] Understanding Scabies: Misdiagnosis, Treatment Challenges, and Recovery
Can People with Amyloidosis Consume Alcoholic Foods Safely?
Can individuals with amyloidosis consume foods containing alcohol? Hello, doctor! Several years ago, I discovered white patches on my skin and went to a clinic for examination. The clinic physician diagnosed me with "amyloidosis." Since I do not have a habit of drinking...
Dr. Wu Yuxin Reply:
There is no direct relationship.[Read More] Can People with Amyloidosis Consume Alcoholic Foods Safely?
Understanding Moles on the Penis: When to See a Dermatologist or Urologist
Mole on the penis issue? Recently, I have noticed a few moles on my penis. They appear to be regular in shape, but I would still like to see a doctor to confirm if there are any issues. Should I go to a dermatologist or a urologist? Additionally, if surgery is required for remova...
Dr. Wu Yuxin Reply:
The dermatology department will conduct an initial assessment, and if surgical removal is desired, a referral to the urology department will be made.[Read More] Understanding Moles on the Penis: When to See a Dermatologist or Urologist
Understanding Skin Rashes: When to See a Dermatologist
Skin issues Hello, doctor. In the past two months, I have noticed red patches appearing on the front and sides of my chest, each about the size of a ten-cent coin. They are not itchy and do not have any bumps, but they are increasing in number. One patch has started to peel and h...
Dr. Wu Yuxin Reply:
Without seeing the actual lesion, it is difficult to make a preliminary assessment. It is recommended to have a dermatologist evaluate it first.[Read More] Understanding Skin Rashes: When to See a Dermatologist
Can Home Hair Removal Devices Be Safe for Keratosis Pilaris?
Can keratosis pilaris be treated with at-home hair removal devices? I have keratosis pilaris, and the instructions for the home hair removal device state that it should not be used on uneven skin tones. Since keratosis pilaris presents as small bumps, will using the hair removal ...
Dr. Wu Yuxin Reply:
Which type of hair removal device?[Read More] Can Home Hair Removal Devices Be Safe for Keratosis Pilaris?
Uneven Mole Color: When to See a Dermatologist?
The mole has an uneven color? Hello, I have a mole on the back of my neck that I believe has been there for a while. It feels smooth to the touch, and the edges are clean, but after taking a photo with my phone, I noticed that the color is not very uniform. Since it is in a locat...
Dr. Wu Yuxin Reply:
If you're worried, go get checked; I can't make the decision for you.[Read More] Uneven Mole Color: When to See a Dermatologist?
Ants on My Toes: Understanding Skin Issues and Diabetes Risks
There are ants in the foot wound? Recently, my toes and fingertips have been itchy, and the area between my right big toe and index toe has started to peel, resembling athlete's foot (not sure). There is a little bit of fluid, and while sleeping, the wound feels prickly. I w...
Dr. Li Yufen Reply:
Hello: Based solely on the textual description, it is not possible to accurately diagnose a skin condition. To determine if there is diabetes, you can visit a family medicine or endocrinology department to measure fasting blood glucose levels. If the skin condition does not impro...[Read More] Ants on My Toes: Understanding Skin Issues and Diabetes Risks
Understanding Itchy Rash on Limbs: Causes and Solutions
Rash and itching on the limbs, but no rash on the body? I am a Malaysian international student. I originally had skin sensitivity issues around my joints, but after arriving in Taiwan, the sensitivity around my joints disappeared. However, I developed large patches of rash on my ...
Dr. Li Yufen Reply:
Hello: Based solely on the textual description, it is not possible to accurately diagnose a skin condition. The hot and humid climate during summer can lead to rashes such as heat rash or eczema, and the skin may also react to new environmental allergens. If the skin condition do...[Read More] Understanding Itchy Rash on Limbs: Causes and Solutions
Understanding and Treating Persistent Lip and Mouth Area Irritations
Lip issues The area around the mouth suddenly becomes red and swollen, resembling a mosquito bite, and it is very itchy but not painful. After a while, it disappears and then turns into small red bumps. There are also small red bumps around the mouth that keep recurring. I have b...
Dr. Li Yufen Reply:
Hello: Based solely on the textual description, it is not possible to accurately diagnose a skin condition. Since it is unclear which type of ointment was applied, it could potentially be recurrent cheilitis. If the skin condition does not improve or worsens, it is advisable to c...[Read More] Understanding and Treating Persistent Lip and Mouth Area Irritations
Can You Safely Combine Oral A Acid with Multivitamins?
Oral retinoids and multivitamins issues? (1) Currently, I am taking oral isotretinoin 20mg every 3 to 4 days. (2) Before starting isotretinoin, I was taking a multivitamin (Centrum for Women), which contains 600mcg of vitamin A per tablet. (3) Since I am concerned about the multi...
Dr. Wu Yuxin Reply:
Vitamin A acid and vitamin A are not the same.[Read More] Can You Safely Combine Oral A Acid with Multivitamins?
Understanding Hard Lumps on Skin: When to Seek Surgical Evaluation
There is a hard lump on a family member's arm? Hello doctor, I recently noticed a hard lump on my family member's arm. Due to the sudden change in skin condition, they visited a general clinic's dermatology department and inquired about the lump. The doctor mention...
Dr. Wu Yuxin Reply:
1. Yes. 2. X-rays have limited diagnostic value for skin issues. 3. It is not a problem for general clinics to perform surgeries.[Read More] Understanding Hard Lumps on Skin: When to Seek Surgical Evaluation
Understanding the Contagiousness of Viral Warts and Care Tips
Are viral warts highly contagious? How should they be cared for? Hello, doctor. As mentioned in the title, I have viral warts on both of my fingers, and they are located in areas that I frequently touch. I also have one on the top of my little toe. I would like to ask: 1. Are v...
Dr. Wu Yuxin Reply:
1. If there is a wound on the skin or if one's immune system is compromised, there is a higher risk of infection. 2. It still occurs. 3. It is not necessary, but treatment should continue. 4. There are risks, but different subtypes of viral warts have different regional prev...[Read More] Understanding the Contagiousness of Viral Warts and Care Tips