Skin, Dermatology FAQ

It seems there is an issue with acne developing around the mouth area? Hello Dr. Wu, I am asking on behalf of my father. He is 61 years old and recently seems to have developed a large pimple near his mouth, which is red and swollen. Today, it appears to have ruptured slightly an...

Skin Red Spots Medical Consultation Hello, doctor! Last year, I went for acupuncture due to discomfort in my hand, and now I have red spots on my arm and shoulder (upon closer inspection, it seems there are also needle marks). It's been over a year, and they haven't dis...

Red streaks after blood sampling? Hello doctor, I have recently noticed that after measuring my blood pressure, there are streaks that appear to be ruptured blood vessels. The pulse is also maintained with enough space for a finger to fit in. I'm not sure if this has happene...

After the swelling of the cheeks subsides, there is still a flat, pancake-like tissue that has not healed? Hello Dr. Lee, my question is related to the extraction of my wisdom tooth, but it seems to be more of a dermatological issue, so I would like to ask you. Three months ago, ...

Side effects of wart removal ointment include erythema, erosion, skin breakdown, and blisters? Hello Dr. Wu: The use of the wart treatment cream has been discontinued for 10 days, but the side effects (skin erythema, erosion, broken skin, blisters) have not completely resolved! I...

Paronychia nail bed issues? A few days ago, I experienced a recurrence of paronychia due to walking too much during a trip and friction from my shoes. During the trip, there was pus that came out easily with a gentle touch, so I squeezed it out. After returning home, I immediatel...

Medications for scrotal eczema? Hello doctor, I would like to ask about a small bump on my scrotum that resembles a mosquito bite and tends to itch at night. It seems like scrotal dermatitis, as I have been wearing long pants frequently at work, which is quite hot and humid. What...

A mole located on the palm line? Recently, I noticed a mole on the edge of my palm. Although it is small, its shape is asymmetrical. Upon closer inspection, I found that the mole is located on a palm line, where the skin is of a normal color, while the areas without palm lines ar...

Mole issues? I have a raised mole on the back of my neck that I recently discovered after asking my family. They told me it has been there since I was very young, but I was unaware of it. I started picking at it, and now it seems to have scabbed over with two small spots on top. ...

Long-term use of antiperspirants in the underarm area? I have a family history of bromhidrosis, and I need to use "Yodofen Antiperspirant" on both armpits to control the odor, averaging once every four days. I would like to ask the doctor if the ingredients in "Yod...

Allergies or insect bites Hello doctor, I often wake up at night due to itching, which has been ongoing for several months. At first, I thought it was mosquito bites, as the lesions are quite separated, about 1 cm in size, and are itchy. Sometimes they appear as hives, and other ...

There is a round bump on the mandible? Hello dermatologist, I just noticed a round bump on my chin while showering. It doesn't hurt when I pinch it, but it can move up and down with the skin. What could this be? Thank you for your response.

Excessive masturbation and the use of body wash do not cause cancer? Since around the second year of junior high school, I have experienced frequent injuries to my foreskin about once every one or two days. After an injury, I would rest for a day or two until it healed before con...

The flat, pancake-like epidermal tissue on the skin may or may not heal on its own over time? Hello, Director Wu. My question, although related to wisdom tooth extraction, seems to pertain more to dermatological issues, so I would like to consult you. Three months ago, I underwen...

Nail trauma leading to displacement and cessation of growth? Hello, doctor. I have a habit of playing basketball, and after getting new shoes over a year ago, I noticed that my left big toenail started to crack horizontally. I went to a nail technician for nail reconstruction to ...

Elderly individuals with red blisters on their skin? Hello Doctor, I would like to inquire about the issue of red blisters appearing on the skin of an elderly person who has been bedridden for a long time. Recently, some red blisters have appeared on the inner side of their arm. ...

After the treatment of viral warts, there may be a hard lump in the surrounding skin? Hello Doctor: A few months ago, I had a small pimple on the back of my hand that was persistent and somewhat inflamed. I eventually went to a dermatologist who diagnosed it as a viral infection,...

Oral isotretinoin issues? Hello, Doctor. Since middle school, I have been experiencing acne in the T-zone. Initially, I was treated with antibiotics, but my condition fluctuated. Later, I saw some improvement with glycolic acid peels and mandelic acid treatments, but I still cont...

Skin tingling followed by browning? I have a history of allergic rhinitis. A few days ago, while I was out, the skin on my left shoulder and neck suddenly became red and painful. It was a very sunny day, and I'm not sure if the pain was caused by sun exposure, but only the s...

Sebaceous cyst issues? I originally had a black spot on my hand that I thought was folliculitis. After seeing a dermatologist, I was told it was a wound and not to worry about it. A few months later, it developed into a lump the size of a grain of rice. One day, it suddenly becam...