Pigmentation, Dermatology FAQ

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...

Molluscum contagiosum I would like to ask the doctor, if molluscum contagiosum resolves quickly on its own (without squeezing, with minimal contact, and no discharge or wound formation, and after two to three months, only a rough texture and pigmentation remain), is this a normal...

Bauhinia's Baolijie Whitening Spot Cream After receiving pico laser treatment, there are still some pigmentation spots that have not faded. The doctor prescribed a depigmentation cream, but my skin is slightly allergic. Can I use it? If not, are there other methods to reduce...

How to prevent scarring from swelling after wisdom tooth extraction? Hello Doctor: I had my lower right wisdom tooth extracted at the clinic on February 22nd. After the extraction, my cheek was significantly swollen. By March 18th, although the swelling had decreased, it was stil...

There is darkened skin on the abdomen? In the past few days, I noticed that the skin on one side of my abdomen has a distinctly different color. I searched online but couldn't determine whether it is a sweat stain, another skin condition, or simply hyperpigmentation.

Nail melanonychia Hello Doctor: Thank you for taking the time to answer my question; I truly appreciate it. About a year ago, I accidentally drove a nail into my finger, penetrating the nail and injuring the nail bed underneath. At the time, I didn't pay much attention to it...

Genital issues / Mole removal / Melanoma Hello doctor, last year I discovered a flat, round black mole about 0.4 centimeters in size on my labia. It is quite noticeable and dark, but it hasn't changed in size over the past year, so it seems like a typical mole. I find it str...

I applied the hydrocortisone ointment prescribed by the doctor, and my face has developed redness and an allergic reaction? Due to having sunspots and liver spots on my face, I visited a dermatologist and applied the medication Hydroquinone as prescribed before bed. Today, I noti...

Underarm hair removal consultation Hello Dr. Wu, I have consulted with a dermatologist who advised against shaving armpit hair, as it may cause the regrowth to be coarser. They only recommend laser hair removal. 1. I would like to ask if using scissors will also cause the hair ...

Eczema or folliculitis? During my university years in Yilan, I remember that I started developing some red, raised lesions on my thighs, buttocks, and arms, which would leave scars. As someone who really cares about my appearance and loves to dress up, I became very self-consciou...

Raised scar-like lesions I saw a dermatologist a long time ago, but I can't remember the name of the raised bump that developed due to friction. The bump on my calf is quite large, and I want to have it removed with laser treatment. Recently, I also noticed a small bump wher...

Issues with the use of retinoids, concerns about skin whitening, and problems related to salicylic acid exfoliation? Hello, Doctor. Thank you for taking the time to answer health consultation questions. Having the opportunity to ask these questions is truly helpful for those who ...

Hyperpigmentation on the inner side of the right thigh? I have dark pigmentation on the inner side of my right thigh. I consulted a dermatologist who said it is hyperpigmentation. I just want to ask if it's possible to have hyperpigmentation only on the right side of the inn...

Areola issues A 23-year-old female has noticed that her areolas have gradually turned white, starting with small patches and now only the nipples retain color, while the areolas are completely white. The other side is also beginning to show similar white patches, without any pain...

There are many moles on the scrotum? I recently discovered a patch of small, raised moles along the midline of my scrotum. There are quite a few of them. Is this a normal pigmentation or should I see a doctor?

A mild cat scratch on the back of the hand that hasn't disappeared for a year and a half—can it still be removed? I sustained a scratch on the back of my hand from a wild cat about a year and a half ago. Recently, I noticed that there is still a light brown scratch mark, whi...

Mole pigmentation Hello Doctor, in the past two years, I have noticed many new moles appearing on my body, both red and black, especially on my back, waist, and arms. There is also one in my intimate area, and a few on my face. Now, if I count them all, there should be more than ...

Skin pigmentation changes after receiving the monkeypox vaccine? Hello Doctor, I received the monkeypox vaccine (intradermal injection) on April 25, and it was administered on my left forearm. It has been four weeks since the vaccination, and the injection site no longer shows an...

Insect bites On May 6th, I was bitten by an unknown insect, resulting in two small swollen bumps on my wrist, which had small blisters on top. I scratched the blisters, causing them to break. Now, almost a week later, the bumps have become hard and have not shrunk or faded; they ...

Angular cheilitis with darkening at the corners of the mouth? Recently, my immune system weakened, which resulted in a red, itchy condition at the corners of my mouth. However, after taking B vitamins, the itching has stopped. I have noticed that the corners of my mouth have been...