Understanding Melanin Loss: Causes and Treatment Options for Skin Discoloration
Loss of melanin Hello, I have been suffering from atopic dermatitis for a long time. I started receiving traditional Chinese medicine treatment three years ago, which has improved my condition significantly. Occasionally, the back of my knees still becomes red and itchy. However,...
Dr. Li Yufen Reply:
Hello: The attached link cannot be opened, and I am unable to see the photos. Chronic inflammation of the skin can lead to hyperpigmentation, and it may also affect melanin production, resulting in hypopigmentation. It is advisable to minimize recurrent skin inflammation. If infl...[Read More] Understanding Melanin Loss: Causes and Treatment Options for Skin Discoloration
Understanding the Use of Silian Cream for Acne Treatment and Prevention
Regarding the usage of Silian Cream? Can I apply that ointment immediately after squeezing a pimple, or does it only serve to lighten acne scars and prevent new breakouts? Additionally, how can I prevent hyperpigmentation from acne? Sometimes, even if I don't touch the pimpl...
Dr. Wu Yuxin Reply:
1. Silyan cream contains azelaic acid, which is a commonly used topical medication in dermatology. This medication is effective for acne, comedones, enlarged pores, and skin whitening to reduce pigmentation. 2. Melanin deposition refers to what we call post-inflammatory hyperpi...[Read More] Understanding the Use of Silian Cream for Acne Treatment and Prevention
Understanding Mosquito Bites: Skin Reactions and Potential Complications
Regarding mosquito bites? Dear Dr. Wu, I would like to ask you a few questions regarding a previous mosquito bite I experienced. The mosquito that bit me was relatively large, and the area of the bite has become red and swollen, appearing larger than usual. Currently, the skin a...
Dr. Wu Yuxin Reply:
1. Of course. 2. If only a single mosquito bites, the symptoms are primarily localized. As for systemic complications or sequelae, they are generally unlikely to occur unless there are multiple bites.[Read More] Understanding Mosquito Bites: Skin Reactions and Potential Complications
Understanding Post-Hair Removal Skin Reactions and Care Tips
Hair removal issues Hello, I would like to ask about hair removal using the epilation method (with a Philips epilator). After each session, my lower legs have small red spots on the hair follicles and a stinging sensation. The pain subsides the next day, and there is no itching, ...
Dr. Wu Yuxin Reply:
It is likely a normal inflammation. It is recommended to apply ice after hair removal and then use some lotion; there is no need to apply ointment. If the inflammation is severe or if blisters develop, medical attention should be sought.[Read More] Understanding Post-Hair Removal Skin Reactions and Care Tips
Choosing the Right Scar Treatment After an Injury: A Guide
Scar treatment for injuries? I previously had an injury and want to remove the scar, but there are many types available on the market, and I'm unsure which one to buy. Would it be better if I visit a dermatologist at the hospital to get a scar removal ointment? There are two...
Dr. Lin Xinpeng Reply:
Hello: I'm not sure what type of scar you are referring to. Scars can generally be classified into atrophic scars and hypertrophic scars. Currently, there are no effective topical medications for atrophic scars. For hypertrophic scars, scar gels or silicone sheets can be use...[Read More] Choosing the Right Scar Treatment After an Injury: A Guide
Unexplained Red Spots on Skin: Causes and Treatment Options
Unexplained red spots on the body? Hello Doctor: I have been experiencing unexplained red spots on my body for over a month. During this time, I consulted a doctor who suggested it might be insect bites. I was prescribed medication and topical treatments. Some of the red spots ap...
Dr. Wu Yuxin Reply:
Based solely on the red spot in the attached photo, insect bites should be the primary consideration. Each individual's reaction to insect bites and the time required for resolution can vary significantly. Other conditions would need to be assessed through direct examination...[Read More] Unexplained Red Spots on Skin: Causes and Treatment Options
Understanding Red Spots Around the Mouth: Causes and Treatments
There are spots on both sides of the mouth? Hello Dr. Lin, about five days ago (on January 24), I noticed red spots appearing on both sides of my mouth, slightly below the corners. They are irregularly shaped, approximately one centimeter in diameter. After a few days, the rednes...
Dr. Lin Xinpeng Reply:
Hello: Based on your description, it is difficult to determine the initial type of lesion. The most likely possibility is post-inflammatory hyperpigmentation resulting from dermatitis. It is recommended that you visit a dermatology clinic for a more accurate assessment.[Read More] Understanding Red Spots Around the Mouth: Causes and Treatments
Understanding Skin Lesions: Answers to Common Concerns About Nevus
Observation of the bone structure? Hello, doctor. I have a concern about my seborrheic keratosis. May I ask: 1. Will this type of seborrheic keratosis continue to increase in number, depth, and size? 2. How many sessions of laser treatment are typically needed for them to disappe...
Dr. Wu Yuxin Reply:
1. Nevus of Ota may increase in number, size, and depth over time before stabilizing. 2. The use of intense pulsed light (IPL) is ineffective for removing Nevus of Ota. Ruby, alexandrite, or Q-switched ruby lasers (for pigment removal) must be used, typically requiring about 4-...[Read More] Understanding Skin Lesions: Answers to Common Concerns About Nevus
Dark Spots Around the Mouth: Causes and Treatment Options
Dark discoloration around the mouth? I have dark areas on both sides of my mouth, and the skin above my lips is also dark. I would like to ask the doctor why this is happening. Is it due to melanin deposition? If so, how should I address it? If not, what can I do to return to the...
Dr. Wu Yuxin Reply:
We need to take a look! Since I can't see the situation right now, it could be due to post-inflammatory hyperpigmentation, possibly caused by an allergic reaction to toothpaste or lip balm. A proper examination is necessary to make a diagnosis.[Read More] Dark Spots Around the Mouth: Causes and Treatment Options
Understanding Post-Scabies Skin Discoloration: Causes and Duration
Scabies sequelae Hello doctor, I would like to ask why there are usually black spots left on the skin after scabies has healed. How long will it take for these black spots to disappear?
Dr. Lin Xinpeng Reply:
Hello: The black spots that occur after general skin inflammation or infection are referred to as "post-inflammatory hyperpigmentation." This type of pigmentation can take anywhere from a few months to several years to gradually fade. It does not require special treatme...[Read More] Understanding Post-Scabies Skin Discoloration: Causes and Duration
Understanding A Acid Dermatitis: Symptoms, Causes, and Recovery Time
A acid dermatitis???? Hello, doctor. I previously used tretinoin, and after taking a hot shower and applying skincare products, I noticed that my skin became very red. Is this tretinoin dermatitis? However, I didn't experience this before; it makes my skin look like erythema...
Dr. Li Yufen Reply:
Hello: It is recommended that you bring a topical retinoid cream and consult a dermatologist to confirm whether the dermatitis is caused by the retinoid or by other skincare products leading to contact dermatitis, or if you are concerned about lupus erythematosus (butterfly rash)...[Read More] Understanding A Acid Dermatitis: Symptoms, Causes, and Recovery Time
Understanding Prolonged Pityriasis Rosea: Symptoms, Diagnosis, and Treatment
Pityriasis rosea has lasted for 3 months? In December 2012, symmetrical red rashes appeared, and a visit to the clinic resulted in a diagnosis of Pityriasis Rosea. After a month of treatment (antihistamines and topical ointments), new rashes continued to emerge. The physician rec...
Dr. Wu Yuxin Reply:
Based on your description, it is indeed likely to be pityriasis rosea. Most sources indicate a duration of 6 to 8 weeks, but there are cases that persist for more than six months. Chronic pityriasis lichenoides (pityriasis lichenoides chronica) should also be considered, as it ma...[Read More] Understanding Prolonged Pityriasis Rosea: Symptoms, Diagnosis, and Treatment
Choosing the Right Laser for Dermatology: Insights on Nevus Treatment
Laser issues What type of laser is suitable for bone grafting? After bone grafting, will it grow back, or will it be denser than before when it does grow back?
Dr. Wu Yuxin Reply:
Treatment for facial angiomatosis can be performed using ruby laser, alexandrite laser, or ruby-jacob laser. It typically requires 4 to 6 sessions. In principle, once the treatment is completed, the lesions should not recur; however, there may be a period of post-inflammatory hyp...[Read More] Choosing the Right Laser for Dermatology: Insights on Nevus Treatment
Understanding Moles and Pigmentation on the Scrotum: When to Worry?
There are many moles on the scrotum, along with a patch of hyperpigmentation? Hello Doctor, 1. I am 25 years old, and since puberty, I have developed many moles on my scrotum and penis. Although they have not increased much recently, I have had over twenty moles of various sizes...
Dr. Wu Yuxin Reply:
Your issue is a bit complex, and it's difficult to visualize it just through description. I recommend that you seek a consultation for a clearer examination.[Read More] Understanding Moles and Pigmentation on the Scrotum: When to Worry?
Underarm Itching: Causes, Treatment, and Skin Discoloration Solutions
Itchy armpits? Hello doctor, I would like to ask about itching in the armpit that later turned dark after scratching. What should I do? Does this mean that my skin will not return to its normal color?
Dr. Wu Yuxin Reply:
Typically, post-inflammatory hyperpigmentation will resolve within 3 to 6 months. The application of whitening creams or skincare products can help accelerate the fading of the pigmentation.[Read More] Underarm Itching: Causes, Treatment, and Skin Discoloration Solutions
Slow Healing Lip Injury: Is It a Cause for Concern?
Lip laceration? I have a question. I bit my lip and the wound has been there for six months. The area shows signs of healing, but it is healing very slowly. Is this considered a problem? Additionally, the injured area sometimes feels slightly raised compared to the rest of my lip...
Dr. Lin Xinpeng Reply:
Hello: I'm not sure if the "good signs" or "slow improvement" you mentioned refer to the complete healing of the broken skin, or if there is still a slight ulceration without normal epidermal coverage. Generally, the healing time for normal lip skin shoul...[Read More] Slow Healing Lip Injury: Is It a Cause for Concern?
Laser Treatments for Acne Scars and Keratosis: What You Need to Know
Can laser treatment be used for keratosis pilaris and acne scars? Hello, I have brown scars on my body caused by squeezing pimples and keratosis pilaris on my arms. These scars have been present for over seven years, and the color is still very noticeable, resembling brown spots ...
Dr. Lin Xinpeng Reply:
Hello: Based on your description, your condition seems to be more aligned with post-inflammatory hyperpigmentation. Generally, the pigmentation on the body takes a longer time to fade, ranging from a few months to several years. Since the circulation in the body and limbs is not ...[Read More] Laser Treatments for Acne Scars and Keratosis: What You Need to Know
Understanding Thick Calluses and Peeling Skin: Eczema or Athlete's Foot?
Thick calluses and peeling on the hands and feet may indicate chronic eczema or athlete's foot? Dear Dr. Lee, I would like to describe my symptoms as follows: 1. The dorsal surfaces of my fingers on both hands have developed thick calluses that are neither itchy nor painfu...
Dr. Li Yufen Reply:
Hello: 1. The photos of the left and right arms appear to be more consistent with chronic psoriasis, which is a type of chronic eczema. Treatment duration may be prolonged, and it is essential to apply the ointment regularly while avoiding scratching. 2. The condition of the ...[Read More] Understanding Thick Calluses and Peeling Skin: Eczema or Athlete's Foot?
Effective Laser Treatments for Hypertrophic Scars and Skin Whitening
Skin whitening Hello Dr. Wu, 1. What laser treatments are recommended for hypertrophic scars? 2. How can friction-induced hyperpigmentation be treated for skin whitening?
Dr. Wu Yuxin Reply:
1. Hypertrophic scars generally tend to regress on their own, or can be treated with local corticosteroid injections or pulsed dye laser therapy to expedite the process. 2. I'm not quite sure what you mean by friction-induced skin darkening. It could be due to prolonged fric...[Read More] Effective Laser Treatments for Hypertrophic Scars and Skin Whitening
Understanding Scabies: Symptoms, Treatment, and Home Care Tips
About scabies? Initially, I developed itchy bumps between my fingers, which later spread to my abdomen, and eventually appeared on my genitals. After seeking medical attention, I was diagnosed with scabies. During this time, I have been applying a scabicide cream daily to my enti...
Dr. Li Yufen Reply:
Hello, sir: If you are really concerned about whether you have fully recovered, I recommend that you visit a nearby hospital to consult a dermatologist. Many patients may still experience residual allergic reactions after the scabies mites have been eradicated, which can lead to ...[Read More] Understanding Scabies: Symptoms, Treatment, and Home Care Tips