Skincare products, Dermatology FAQ - Page 5

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Understanding Skin Reactions: Redness and Bumps from Skincare Products

Redness and heat caused by skincare products? Hello, Doctor: I would like to ask you two questions. 1. I currently have many small, fine rashes on my facial skin that can be itchy at times. Occasionally, when the itching subsides, I notice a small blister suddenly appearing, wh...


Dr. Wu Yuxin Reply:
Question 1: It is likely that the eczema is caused by hot and humid weather or changes in the environment. Question 2: It is possible; you can stop using it for now, and once the skin condition improves, you can try using it again to see the results.

[Read More] Understanding Skin Reactions: Redness and Bumps from Skincare Products


Effective Solutions for Persistent Blackheads on the Nose: Expert Tips

Nasal comedones Hello, Doctor: I have very severe blackheads on my nose, which are clearly visible from a distance as small black dots. I have seen a dermatologist, but the doctor only prescribed me tretinoin, and after using it for over a year, there has been no improvement. Ins...


Dr. Guo Fengsheng Reply:
If the blackheads on the nose persist without improvement, other treatment options such as laser treatments like Clear + Brilliant or fractional laser may be considered. Additionally, reducing the continuous use of comedogenic cosmetics or skincare products is essential to preven...

[Read More] Effective Solutions for Persistent Blackheads on the Nose: Expert Tips


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


Understanding Eyelid Papules: Causes, Treatments, and Prevention

The growth of granulomas around the eyes? Hello Doctor: I have noticed that there are granulation tissues around my eyes for about three to four months now. According to a friend, it may be caused by using skincare products that contain oils, so I am unsure whether the cause is t...


Dr. Lin Xinpeng Reply:
Hello: The most common type of proliferative granuloma around the eyes is syringoma. It appears as clusters of flesh-colored papules on the skin, primarily located beneath the eyelids. The causes include genetics, female hormones, individual skin type, and skin aging, which lead ...

[Read More] Understanding Eyelid Papules: Causes, Treatments, and Prevention


Understanding Facial Swelling and Redness: Causes and Solutions

The entire face is very swollen and red? The entire face is very swollen, red, and the temperature remains elevated. What could be the cause?


Dr. Yang Zhiya Reply:
Hello, it is important to check if anything occurred before the skin became red and swollen, such as taking medication, consuming spoiled food, sun exposure, changing skincare products, or undergoing laser treatment, etc. It is advisable to visit a dermatologist as soon as possib...

[Read More] Understanding Facial Swelling and Redness: Causes and Solutions


How to Use Toner for Oily Skin: Tips for You and Your Father

How to use toner? Doctor: I have oily skin and I'm using Sebamed's acne-specific toner. I'm not sure how many times a day I should use it. My father also has oily skin; can he use it as well? Thank you!


Dr. Yang Zhiya Reply:
The purpose of toner is to provide the skin with some hydration before applying skincare products. It is typically used after washing the face, and the frequency of use depends on how often one washes their face. It is important for individuals to try any skincare product to see ...

[Read More] How to Use Toner for Oily Skin: Tips for You and Your Father


Effective Treatments for Enlarged Pores on the Nose

Enlarged pores on the nose? Hello, I have a few questions regarding enlarged pores on the nose: 1. Can topical medications be used for treatment? If so, what medications should be applied? 2. What is the best treatment method? Thank you.


Dr. Yang Zhiya Reply:
The issue of enlarged pores cannot be treated with topical ointments; generally, the most effective treatment methods are various types of laser resurfacing. If you are referring to blackheads on the nose, you can use oil-controlling skincare products and avoid sun exposure and s...

[Read More] Effective Treatments for Enlarged Pores on the Nose


How to Address Thinning Skin from Overuse of Steroid Creams

Skin thinning Hello Dr. Wu, what should I do if excessive use of corticosteroid ointments has caused my skin to become thin?


Dr. Wu Yuxin Reply:
Medication should be discontinued immediately, and complete recovery may not be guaranteed. It is recommended to apply substances that can enhance collagen production and hydration in the dermis, such as skincare products containing urea or alpha hydroxy acids, but it should be n...

[Read More] How to Address Thinning Skin from Overuse of Steroid Creams


Understanding Neck Acne: Causes and Solutions for Persistent Breakouts

Acne on the neck? Hello Doctor: I have a tendency to develop acne easily. I have been seeing a dermatologist for a long time, and my condition has stabilized. However, whenever I eat the wrong foods or drink cold water, I break out. Recently, for some reason, I have been getting ...


Dr. Wu Yuxin Reply:
Due to the lack of direct observation, a definitive diagnosis cannot be established; however, based on your description, it is likely a cystic type. The cystic type is associated with lifestyle factors such as staying up late, insomnia, and the menstrual cycle in women. Additiona...

[Read More] Understanding Neck Acne: Causes and Solutions for Persistent Breakouts


Effective Solutions for Back and Arm Acne: Expert Advice

The troubles of acne? Hello Dr. Kuo: I have acne on my back and both arms. What should I do? This situation has been ongoing for a long time.


Dr. Guo Fengsheng Reply:
It may be a problem related to keratosis pilaris that causes pores to become easily clogged. Please seek medical advice and consider using some acid-based skincare products in moderation.

[Read More] Effective Solutions for Back and Arm Acne: Expert Advice


Using Expired Skincare Products and Toothpaste: Health Risks Explained

Issues with the use of expired skincare products and toothpaste? Dear Doctor: I recently moved and found some expired products, including lotions, sunscreen, baby powder, toothpaste, and soap, with expiration dates ranging from a few months to several years. Can these still be us...


Dr. Guo Fengsheng Reply:
Products that have exceeded their expiration date should not be used, as the internal components can easily deteriorate, potentially leading to allergic reactions and other skin irritations.

[Read More] Using Expired Skincare Products and Toothpaste: Health Risks Explained


Understanding Recurring Redness and Peeling Skin: Causes and Treatments

Recurrent skin redness and peeling? Doctor: May I ask, my facial skin has been experiencing red, peeling patches since April, occasionally accompanied by itching. After taking medication and applying topical treatments for 3-4 days, it improves, but the same issue reappears after...


Dr. Guo Fengsheng Reply:
Acute facial eczema is generally caused by allergies. If you have further questions, you can get a blood test at the hospital. It is recommended to discontinue all cosmetics and skincare products to allow the skin to return to its original state before seeking medical attention.

[Read More] Understanding Recurring Redness and Peeling Skin: Causes and Treatments


Effective Care Tips for Managing Seborrheic Dermatitis Symptoms

Seborrheic dermatitis Hello Doctor: I have a severe allergy affecting my entire face, causing redness, swelling, itching, and peeling. I previously visited the dermatology department at Mackay Memorial Hospital, where the doctor diagnosed me with seborrheic dermatitis, but it has...


Dr. Huang Ruiyun Reply:
Hello: Please refrain from using any cosmetics or skincare products, and do not apply face masks. If you feel dryness, you may only use Vaseline. Make sure to go to bed early and avoid staying up late. Do not use your fingernails to peel the skin on your face. Your condition may ...

[Read More] Effective Care Tips for Managing Seborrheic Dermatitis Symptoms


Effective Solutions for Enlarged Pores: Myths and Medical Treatments

Enlarged pores Hello, I have enlarged pores on my nose and would like to ask a few questions: 1. The pharmacy staff claims that the skincare products they sell can reduce pore size. Is this true? If so, who is suitable for these products, and who should avoid them? 2. Among t...


Dr. Huang Ruiyun Reply:
Hello: Topical agents for pore reduction include salicylic acid, alpha hydroxy acids (AHAs), and retinoids. Light therapy devices include carbon laser and intense pulsed light (IPL), among others. However, it is important to understand the following facts: 1. Pore size, much like...

[Read More] Effective Solutions for Enlarged Pores: Myths and Medical Treatments


Dealing with Acne After Laser Treatment: What You Need to Know

Laser treatment for freckles can lead to the development of acne? Hello, I would like to ask about my previous laser treatment. I'm not sure what type of laser it was, but I had spot laser treatment that was done a month and a half ago. I underwent a total of six sessions fo...


Dr. Du Zhiqiang Reply:
Hello, A-Hsuan: If you have developed acne in the areas treated with laser for pigmentation after multiple sessions, there are two possible reasons: (1) Excessive and frequent laser treatments may cause localized skin overheating or the dressing may not be breathable, leading to ...

[Read More] Dealing with Acne After Laser Treatment: What You Need to Know


Understanding Calluses, Warts, and Acne in Pediatric Dermatology

Hyperkeratosis of the soles, viral warts, and acne? Hello Dr. Huang, Recently, I consulted you regarding my child (2 years old) who had a persistent corn on the sole of their foot. We visited your clinic, and you mentioned that the lesion under the big toe resembled a viral wart...


Dr. Huang Ruiyun Reply:
Hello: 1. Keratinization refers to the thickening of the stratum corneum in the skin, which can also mean the formation of calluses. 2. This should be a product name; I cannot provide an answer without knowing the ingredients of this medication. 3. Please follow up at the origina...

[Read More] Understanding Calluses, Warts, and Acne in Pediatric Dermatology


Understanding Steroid Rosacea: Treatment Challenges and Solutions

Steroid rosacea Hello, doctor. Since last August, I have been experiencing frequent skin rashes. After visiting several doctors, they all diagnosed it as eczema and prescribed mainly corticosteroids. My condition has been fluctuating, and I have had to visit the clinic almost eve...


Dr. Huang Ruiyun Reply:
Hello: If it is steroid-induced rosacea, there will initially be a transitional period. (The transitional period is not caused by the medication used to treat rosacea, but rather by withdrawal symptoms from stopping the steroids.) If you do not have a genetic predisposition to ro...

[Read More] Understanding Steroid Rosacea: Treatment Challenges and Solutions


Effective Laser Treatments for Freckles: What You Need to Know

Laser Since elementary school, there have been spots on the left side of the face and neck. Are they freckles? Which type of laser is most effective? Is a stronger laser treatment more effective? If no medication is applied after the laser treatment and the area is kept dry, will...


Dr. Huang Ruiyun Reply:
Hello: 1. It is not freckles; freckles are present on both sides, not just one side. 2. Ruby laser is the best; ruby-chromium laser and alexandrite laser are also acceptable. 3. Not necessarily. 4. No, applying an oily ointment or artificial skin will heal faster. 5. It can only ...

[Read More] Effective Laser Treatments for Freckles: What You Need to Know


Understanding Closed Comedones: Causes, Treatments, and Prevention Tips

Closed comedones Hello, Doctor: I have developed many small white bumps on my chin. I previously visited a dermatologist, but the consultation felt a bit rushed, and I was prescribed a topical treatment. I’ve heard that closed comedones can disappear over time just by using a non...


Dr. Jiang Yujiao Reply:
Xiao Ping: Hello! Closed comedones, also known as whiteheads, occur when the sebaceous glands at the skin's surface (actually at the follicular openings) become blocked by excessive keratinized material, often triggered by skin type or the use of overly oily skincare product...

[Read More] Understanding Closed Comedones: Causes, Treatments, and Prevention Tips


Understanding Rashes: Are They Due to Skincare Product Reactions?

Rash If a rash develops after using medical cosmetic skincare products, could it be due to the skin not having adapted yet, or is it because the individual is not suited for these products? Some say it is due to underlying issues in the skin. What is the correct reason? Thank you...


Dr. Huang Ruiyun Reply:
Hello: If you develop a rash after applying a certain product to your skin, it is most likely a case of contact dermatitis. Contact dermatitis can be divided into two types: allergic contact dermatitis, which occurs when you are allergic to a specific ingredient, similar to how s...

[Read More] Understanding Rashes: Are They Due to Skincare Product Reactions?


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