Skin, Dermatology FAQ - Page 40

How to treat viral warts? 1. If you have warts on your feet, how long should you apply the medication, and what changes in the skin indicate that it has healed? 2. If you continue to apply salicylic acid solution and experience redness and swelling, can you apply clotrimazole c...

The wart removal solution applied to the face resulted in dark spots on the skin? If your face appears dark after applying wart removal solution, you should first wash your face gently with mild soap and water to remove any residue. Avoid scrubbing or using harsh products that ma...

Medication treatment for sebaceous cysts? Hello, doctor. Three weeks ago, a sebaceous cyst on my buttock became inflamed and enlarged (it was about the size of a 50 NT dollar coin during high school, and has swollen to the size of a plum). Due to the pandemic, I went to the pharm...

Itchy and red in the groin area? I'm not sure if it's tinea corporis (ringworm) since I had it before but haven't had it for a long time. Occasionally, it still itches. Today, I suddenly noticed some redness, and it hurts a little when I touch it. It's been ho...

Nipple issues in the breast? The nipples on both sides appear to be covered with a layer that resembles a 'film' (not completely) that can be peeled off but is somewhat painful, as if it is connected to the skin. There are many lesions that look like chronic eczema (nip...

What are the interactions between mandelic acid and whitening products? I recently bought an 18% mandelic acid at Watsons and have been using a whitening toner as well. I apply the toner first and then the acid, but I've heard that mandelic acid can render whitening products...

Nipple lump I can't recall exactly when it started, but it seems to have begun after I entered puberty. My nipples have developed hard lumps that feel like they are attached to the skin. Since I don't usually clean my chest area thoroughly, I'm not sure if it'...

The viral wart has developed a blister and scab that has not fallen off for over a month, and it has only been treated with cryotherapy once? Hello Doctor, I have developed a viral wart on the sole of my left foot. Over a month ago (about 40 days ago), I underwent cryotherapy at ...

Regarding the use of acidic products? Hello, I recently came across questions on this website regarding patients using acids at home. As a patient with keratosis pilaris (I have previously consulted a dermatologist), I would like to ask if there are recommended types and concentr...

Side effects of Phenylephrine? Due to a small cauliflower-like growth, the doctor recommended applying phenol. However, a few days after application, the surrounding area began to ulcerate and swell. The ulcerated area, along with what seems to be dead skin, is gradually merging ...

After a blister on the finger bursts, a granuloma forms? Hello Dr. Wu, I have a question. Due to my work, I developed a blister on my finger that later burst. After wearing cotton gloves (which caused moisture buildup) for a while, the area where the blister broke has developed a...

Brown spots on the hands? Hello Doctor, my father is 50 years old and recently discovered a large brown spot on his hand as shown in the picture (https://drive.google.com/file/d/1QYMMEBg3i2gFpQaF5BEn1xAWO3r54gwL/view?usp=drivesdk). It feels similar to normal skin. Could you pleas...

How to buy facial cleanser? How can a man choose a facial cleanser if he still has dandruff despite using a scalp purifying solution like Amas? He has also tried using Dandruff Control Gel. What should he do?

Oval-shaped scar on the back of the hand? At the age of 14, I fell forward while catching a ball, and at that time, I didn't go to the health room. I ended up with a large scar on the back of my hand. Many people have told me that it will gradually fade, but to this day, it ...

The possibility of acne being a contagious disease? Hello, doctor: I would like to ask if a person with syphilis has a pimple that bursts and splatters onto another person's face, and the person who gets splattered also has pimples, is there a possibility that this could lea...

Itchy nail folds? I would like to consult a doctor about itching in the nail folds of my fingers. I remember that when I was very young, all of my fingers had itching on one side, but now only the index fingers on both hands still itch (the others have healed on their own long ag...

The area under the nails appears dark? Last week, I suddenly noticed that my nail looked dark. I thought it was dirt from the skin under the nail, but it wouldn't wash off. I even tried to pick at it with a needle, but couldn't get anything out. I'm also worried th...

Regarding birthmarks? 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, approximately 0.5 cm in size, and the surface is flat. It has been with me for over ...

Herpes labialis Hello Dr. Lee, I developed a cold sore at the corner of my mouth on Saturday night (I guessed based on pictures I found online). This is my first outbreak. I've read online that some say I should see a doctor within 72 hours; others say that I must seek medic...

Unexplained nail pain? Hello, I would like to ask about a situation where the nail appears normal and there has been no trauma or cutting too short, but there is pain when lightly pressing on the nail surface. There is also a slight sensation even when not pressed, and this has b...