Understanding Joint Swelling and Numbness After Topical Ointment Use
After applying Ganderson ointment, the joint of the left foot's little toe is swollen, and the entire leg is numb? Dear Dr. Wu, I have a foreign body (fibrous splinter) near the joint of my left foot's ring toe. At the beginning of May, I went to a large hospital for a...
Dr. Wu Yuxin Reply:
1. It is impossible to determine without actually seeing the lesion. 2. You should first consult an orthopedic specialist. 3. Seek medical attention first. The subsequent questions are hypothetical.[Read More] Understanding Joint Swelling and Numbness After Topical Ointment Use
Itchy and Peeling Skin Between Toes: Causes and When to See a Dermatologist
Itching and peeling between the little toes? Hello, doctor. For the past few weeks, I've noticed that the spaces between the little toe and the ring toe on both of my feet have started to itch and peel. I'm not sure if I've scratched the skin or if it's due to...
Dr. Wu Yuxin Reply:
It is most likely a fungal infection, and it is recommended to seek medical attention.[Read More] Itchy and Peeling Skin Between Toes: Causes and When to See a Dermatologist
Unexplained Itchy Skin on Arm: Seeking Dermatological Advice
Itchy skin on the arm with no visible abnormalities? Hello Doctor: I have been experiencing unexplained itching on my left forearm for the past few days, but there are no visible abnormalities. **Lifestyle and Environment**: My routine has been quite irregular lately; I have be...
Dr. Wu Yuxin Reply:
Medical regulations state that "a physician may not administer treatment or prescribe medication without personally examining the patient," and therefore, online diagnosis is also not permitted. If it is inconvenient to seek medical care during the pandemic, you may inq...[Read More] Unexplained Itchy Skin on Arm: Seeking Dermatological Advice
Understanding Persistent Red Spots on the Skin: Causes and Solutions
Red spots There are two to three circular red spots on the skin of my palm (they are not peeling, itchy, or painful) that have persisted for over two months without improvement. I have been applying a topical cream for more than a week without any effect. I would like to know wha...
Dr. Wu Yuxin Reply:
No lesions were observed, and it is not possible to determine the issue. If you are very concerned, please seek medical attention promptly.[Read More] Understanding Persistent Red Spots on the Skin: Causes and Solutions
Can Niacinamide and Salicylic Acid Be Used Together for Acne Treatment?
Can "niacinamide" be used in conjunction with "salicylic acid"? Should special attention be paid if acne appears in the same area? Due to the pandemic, I've been staying at home and recently I've been experiencing some stress, which has led to breako...
Dr. Wu Yuxin Reply:
1. The reason why niacinamide and salicylic acid should not be used together is due to the potential for niacinamide to become less effective when combined with acidic ingredients, which may lead to reduced efficacy of both compounds. 2. The areas where acne appears, primarily a...[Read More] Can Niacinamide and Salicylic Acid Be Used Together for Acne Treatment?
Managing Adult Atopic Dermatitis: Tips for Dry Skin and Flaking
Atopic dermatitis transformation in adulthood? Hello, doctor. Thank you for taking the time to answer my questions. I had atopic dermatitis when I was younger, and my doctor said it was hereditary. He mentioned that it would improve in adulthood and that my dry skin might not lea...
Dr. Wu Yuxin Reply:
Atopic dermatitis is a condition that can persist into adulthood for some individuals. It is recommended to seek treatment from a specialist. It is also important to differentiate between atopic dermatitis and general eczema.[Read More] Managing Adult Atopic Dermatitis: Tips for Dry Skin and Flaking
Does Picking at Moles Increase Skin Cancer Risk? Expert Insights
Does picking at a mole increase the risk of cancer? Hello Doctor: I accidentally picked off a mole on my chest, and it came off as a small round black ball. I would like to ask if this action increases the risk of melanoma in that area? When it grows back, will it definitely be l...
Dr. Wu Yuxin Reply:
It does not increase the risk of cancer; if you remove it, it may grow back similarly.[Read More] Does Picking at Moles Increase Skin Cancer Risk? Expert Insights
Understanding Scalp Lumps: When to Worry About Skin Conditions
Scalp mass Hello Dr. Wu, I have been dealing with seborrheic dermatitis on my scalp for a long time, and my scalp often feels oily. About a year ago, I discovered a hard lump on my scalp that is quite firm and does not move. I consulted a nearby dermatology clinic, and after a b...
Dr. Wu Yuxin Reply:
If you have concerns, it's advisable to conduct an evaluation first before deciding whether to proceed with a biopsy.[Read More] Understanding Scalp Lumps: When to Worry About Skin Conditions
Is It Normal for Dermatologists to Prescribe Eye Ointments?
Medication issues? Hello, doctor. I would like to ask you about a recent visit to a dermatology clinic regarding some nail-related issues. The physician prescribed Gentamicin Sulfate, which is labeled as an eye ointment. Is it normal for a dermatologist to prescribe an eye ointme...
Dr. Wu Yuxin Reply:
It's quite normal, as it also contains antibacterial ingredients that can treat skin infections.[Read More] Is It Normal for Dermatologists to Prescribe Eye Ointments?
Understanding and Managing Penile Skin Issues: What You Need to Know
Foreskin issues Three weeks ago, I noticed a small, somewhat hard lump on my foreskin that is not very noticeable but can be felt. It is not painful, and I have no sexual experience. Three to four days ago, I foolishly tried to cut it off with a utility knife to see if I could re...
Dr. Wu Yuxin Reply:
Unable to preview, it is recommended to consult a urologist or dermatologist, and do not attempt to manage it on your own.[Read More] Understanding and Managing Penile Skin Issues: What You Need to Know
Understanding Skin Reactions After Insect Bites: What to Expect
Insect bites? Hello, doctor: Recently, I was bitten by either mosquitoes or fleas, resulting in many welts. I have been bitten continuously for two to three days, and several areas are red and swollen with blisters. While that is manageable, I noticed that after the swelling subs...
Dr. Wu Yuxin Reply:
No lesions were observed, making it difficult to determine the issue. If you are very concerned, please seek medical attention promptly.[Read More] Understanding Skin Reactions After Insect Bites: What to Expect
Frequent Blisters on Feet: Causes and Solutions for Pain-Free Skin Issues
Frequent blisters on the soles of the feet that are not painful or itchy? Hello, doctor. I would like to ask a question. I frequently develop medium to large blisters on the soles and sides of my feet, but they are not painful or itchy. They resemble blisters caused by friction f...
Dr. Wu Yuxin Reply:
When dealing with blisters on the soles of the feet, it is important to consider conditions such as fungal infections, dyshidrotic eczema, or excessive friction. It is advisable to seek medical attention for a proper diagnosis, as the treatment methods can vary significantly.[Read More] Frequent Blisters on Feet: Causes and Solutions for Pain-Free Skin Issues
Understanding Warts: Freezing Treatment, Wound Odor, and Infection Risks
Wart cryotherapy wound has a fishy odor? I have multiple warts on the soles of my feet and have undergone several sessions of cryotherapy. Recently, I noticed that the wound from the cryotherapy has a fishy odor. Could this indicate an infection? Additionally, after the skin arou...
Dr. Wu Yuxin Reply:
Is there a fishy odor? It is possible that an infection has occurred, and you should return for a follow-up appointment as soon as possible. If the skin has fallen off the wound, the underlying tissue visible should indeed be the dermis.[Read More] Understanding Warts: Freezing Treatment, Wound Odor, and Infection Risks
Uneven Skin Tone on Lower Legs: Causes and Treatment Options
Discoloration spots appear on the lower part of the calf? Hello, doctor. I started using spray sunscreen this week, but since the length of my pants exposes a small portion of my calves, I may not have applied it evenly. I've noticed that the exposed area of my calves has de...
Dr. Wu Yuxin Reply:
Sure.[Read More] Uneven Skin Tone on Lower Legs: Causes and Treatment Options
Understanding Skin Discoloration: Scars vs. Moles and Treatment Options
Skin problem consultation Dear Dr. Wu, When I was young, I injured the sole of my right foot by stepping on a nail. At that time, I was taken to a surgical clinic where the doctor treated the wound without anesthesia. I am unsure if this was too stimulating for the wound. After ...
Dr. Wu Yuxin Reply:
1. Pigmentation is different from scarring. 2. Pigmentation is different from scarring, and it rarely involves pathological issues. 3. A professional physician should evaluate it. 4. Pigmentation is different from scarring, and the treatment methods are also different.[Read More] Understanding Skin Discoloration: Scars vs. Moles and Treatment Options
Understanding Elbow Scaling: Is It Psoriasis or Eczema?
Concern about desquamation on the outer side of the elbow being psoriasis? Hello Doctor: In early July last year, after a few days of staying up late and sunbathing in Taitung, I suddenly developed mild scaling on the outer elbow creases of both arms the next day. A few days late...
Dr. Li Yufen Reply:
Hello: For a detailed introduction to psoriasis, you can refer to the article on Care Online at https://www.careonline.com.tw/2019/03/psoriasis.html. From the four photos, it appears to resemble eczema-like lesions. If the skin condition does not improve or worsens, it is advisab...[Read More] Understanding Elbow Scaling: Is It Psoriasis or Eczema?
Flea Bites on Wrist: Redness, Pain, and When to See a Doctor
The wrist is red, swollen, and painful after being bitten by a flea? If you were bitten by fleas on your wrist and the bite marks are arranged in a triangular pattern, and now they have become red and swollen after starting to itch, applying ointment provided temporary relief but...
Dr. Li Yufen Reply:
Hello: For a detailed introduction on mosquito bites, you can refer to Dr. Lin Cheng-Hsien's article at https://www.dr-skin.com.tw/health/view/20. If your skin condition does not improve or worsens, it is recommended to consult a nearby dermatologist for diagnosis and treatm...[Read More] Flea Bites on Wrist: Redness, Pain, and When to See a Doctor
Should You Worry About Your Congenital Mole? Expert Insights
Congenital mole Hello, doctor. I have a question. I have a mole on the front of my thigh that I was born with. It has a small black dot in the center, surrounded by a brown irregular shape, measuring about 0.5 cm. The surface is flat and it has been with me for over forty years w...
Dr. Wu Yuxin Reply:
If you're concerned, have a dermatologist check it out.[Read More] Should You Worry About Your Congenital Mole? Expert Insights
Can You Get the AstraZeneca COVID-19 Vaccine While Taking Finasteride?
Is it safe to receive the Oxford-AstraZeneca COVID-19 vaccine while taking finasteride for male pattern baldness? Is it safe to receive the Oxford-AstraZeneca COVID-19 vaccine while taking finasteride for male pattern baldness? I have been taking finasteride for about three weeks...
Dr. Wu Yuxin Reply:
I'm sorry, I cannot answer this.[Read More] Can You Get the AstraZeneca COVID-19 Vaccine While Taking Finasteride?
Should You Worry About a Growing Mole? Expert Advice on Skin Concerns
Mole growth issues? Hello, Doctor. The attached image shows a mole on my face: https://ppt.cc/fLUvjx. This mole has been present for about ten years and has been growing, although not rapidly. Two years ago, its diameter was 0.6 cm, and I just measured it at 0.7 cm. The surface i...
Dr. Wu Yuxin Reply:
Medical regulations state that "a physician must personally examine a patient before providing treatment or prescribing medication..." Therefore, online diagnosis is also not permissible. If you are experiencing significant distress, it is advisable to seek medical atte...[Read More] Should You Worry About a Growing Mole? Expert Advice on Skin Concerns