Skin, Dermatology FAQ - Page 42

Toenail issues? Hello, Doctor: About four months ago, I started experiencing pain in my right big toe, and a few days later, I noticed that the toe suddenly turned black. During this time, the blackened nail has been growing very slowly, and the trimmed nail had some areas that l...

Abdominal folds Hello doctor, I have a prominent horizontal line on my abdomen near the ribs. Is there any way to eliminate it? I have searched for answers for a long time and only found that applying lotion might help, but after using it for over a year, I still haven't see...

Can scabies be transmitted through contact with mice? I live in an older community, so it's common for mice to enter my home. Last week, while I was back home and sleeping at night, I felt something unusual in my blanket. Startled, I kicked the object away and discovered it ...

The inflamed sebaceous cyst has ruptured, leaving a hole? I have an inflamed sebaceous cyst, and the surrounding skin is red and swollen. The dermatologist prescribed self-paid antibiotics, as well as medications covered by health insurance, which I've been taking for six da...

What is the best timing for the excision of a sebaceous cyst? If there is a sebaceous cyst located in the perineal area that frequently becomes inflamed due to prolonged sitting, temperature, and pressure, when would be the best time to schedule an excision surgery with a dermato...

Suspected lichen planus with surrounding erythematous rash? Hello Doctor, I have had a round area on my lower back for several months that has now developed hyperpigmentation and has been quite itchy. I haven't been able to see a doctor because it's inconvenient while I...

Suspected urticaria? Symptoms: 1. When pressure (such as pressing or rubbing) is applied to the skin, it becomes red and raised, resembling mosquito bites. 2. Foods with higher allergenic potential, such as pineapple, banana, and apple, now cause allergic reactions (previously di...

Persistent skin itching? I have a lot of red, itchy bumps on my buttocks, lower chest, and abdomen. I have tried two different ointments, but they haven't helped. Since I am currently in the U.S. and have limited access to healthcare, I consulted a traditional Chinese medici...

Allergic reactions to toner? Dear Doctor, I recently changed my toner and moisturizer. I use them after washing my face in the morning with cold water and at night with warm water. Initially, there were no issues, but after about half a month, my face becomes very itchy after app...

Post-laser hair removal skin may experience darkening, swelling, and itching? Hello, about five days ago I underwent laser hair removal in the intimate area. I have previously had six sessions without any issues, but this time the pain during the procedure was more intense than u...

Scabies transmission situation? 1. Recently, I learned about scabies and discovered that a family member belongs to a high-risk group (working in a nursing home). This person does not have the habit of showering and changing clothes immediately upon returning home, so they sit on...

Mosquito bites can cause blisters? Hello, doctor. A week ago, I was bitten by a mosquito on my ankle, and the next day it swelled up, causing redness and swelling that extended to my calf, along with a blister that is about 2 centimeters in diameter. After a few days, it hasn...

Itchy red rash on the body? Hello Dr. Lee, About two weeks ago, I ate crab and shrimp, and the next day I developed a rash on my body. It doesn't resemble the patchy appearance of hives that I have experienced in the past, which typically resolve quickly. Instead, it appear...

A dark spot on the nail? Hello, doctor. I'm 16 years old, and today I noticed that the smallest toenail on my left foot is black. I've had athlete's foot since I was young, and the other toenails are normal. Only this little toenail is black, and I usually keep my ...

Red spots In early February, I developed ring-like erythema on my left palm, with about three to four lesions. Recently, my face has also been flushing easily, and I have been experiencing unusual body heat. Occasionally, I feel pain in my left shoulder. What could this condition...

Skin issues Hello doctor, in the past few days, I have noticed that I have small, itchy bumps appearing on my arms and legs almost every day. They are slightly smaller than mosquito bites, and after they subside, they leave behind red spots that take a while to disappear. Could y...

Mole on the sole of the foot with itching? A new mole has appeared on the sole of my foot, which has changed from a light black to a dark black over the past four months. Recently, the area about 1.5 cm next to this mole has become inflamed and itchy. After two days, the mole its...

Post-laser pigmentation rebound? Hello, I have undergone two sessions of laser treatment for pigmentation at a beauty salon, but I am experiencing post-inflammatory hyperpigmentation. What should I do? Are there any creams I can apply, or should I use a whitening serum? I have se...

Skin itching allergy The medication containing the ingredient FINASTERIDE can cause allergic skin reactions, including itching and rashes. It appears that after taking the medication Rogaine last month, you experienced skin itching and rashes, which improved after discontinuation...

Sebaceous cyst issues? Hello, I would like to ask about a visit I had on April 5th to a medical aesthetics department at a large hospital regarding a sebaceous cyst on my face. The doctor mentioned that only laser treatment was needed (the cyst is approximately 0.5 cm in size). A...