Understanding Black Spots on the Glans: Causes and Treatments
Black spots on the glans? Hello: There are black spots on the glans that look a bit like the remnants of eczema, but they are not itchy or painful at all. Should I be concerned about this? If medication is needed, what should I apply?
Dr. Zhang Zhibo Reply:
Hello: The symptoms you described are known as "post-inflammatory hyperpigmentation." Generally, it tends to fade within a few months. If treatment is desired, topical whitening agents can be used; however, due to their potential for irritation, the concentration should...[Read More] Understanding Black Spots on the Glans: Causes and Treatments
Understanding Blisters: Causes, Treatments, and Contagion Concerns
Blister Hello Dr. Chang, I have been experiencing intermittent blisters on my hands and feet for a long time, which become itchy after being popped. A doctor mentioned that it is due to sweat gland obstruction. I have taken medication and applied topical treatments, but the con...
Dr. Zhang Zhibo Reply:
Hello: What you are referring to is likely "dyshidrotic eczema," which is a very itchy skin condition. Some individuals may develop it due to athlete's foot, while others may have an allergic predisposition that triggers it during seasonal changes. The general trea...[Read More] Understanding Blisters: Causes, Treatments, and Contagion Concerns
Identifying Skin Conditions: Eczema, Ringworm, Seborrheic Dermatitis, and Cellulitis
Please consult regarding the identification of skin symptoms (forwarded from the Director's mailbox)? Dear Sir/Madam, I kindly request your guidance on the following matters: 1. How to differentiate between the following conditions: 1. Eczema 2. Tinea (ringworm) ...
Dr. Zhang Zhibo Reply:
Hello: Your questions are answered briefly as follows: 1. Eczema: This term refers to various conditions of skin inflammation: 1-1 Acute eczema: Characterized by a short duration of onset, presenting with redness, swelling, or changes in the epidermis such as blisters or sign...[Read More] Identifying Skin Conditions: Eczema, Ringworm, Seborrheic Dermatitis, and Cellulitis
Understanding Skin Lumps: What Could Be Causing Your Facial Bump?
I'm not sure what this is? Hello, I have a lump on my face and I'm not sure what it is. At first, it was just under the skin, and I felt it while showering. The next day, another lump appeared on my cheek, and it gradually got bigger, about the size of a small coin. Aft...
Dr. Huang Ruiyun Reply:
Hello: It may be an epidermoid cyst. If it continues to be bothersome, you can visit a surgeon (preferably a plastic surgeon) to have it surgically removed. Wishing you peace and good health.[Read More] Understanding Skin Lumps: What Could Be Causing Your Facial Bump?
How to Treat Persistent Warts Under the Nail Bed in Children?
What should I do if the warts in the nail folds won't go away? Dear Dr. Chang, I have an eight-year-old boy whose right index finger has developed a wart in the gap between the fingers. After a failed cryotherapy treatment by a dermatologist, the application of wart treatme...
Dr. Zhang Zhibo Reply:
Hello: Warts located next to the nail are the most difficult to treat, especially in children. Cryotherapy can be painful, and children often have a low pain tolerance, which makes many doctors and parents hesitant to pursue more invasive treatments. Of course, topical wart treat...[Read More] How to Treat Persistent Warts Under the Nail Bed in Children?
Understanding the Differences Between Folliculitis and Acne: Your Dermatology Questions Answered
I have a few more questions to ask the doctor? Thank you for the doctor's response, but I still have a few questions. I recently noticed that the bumps on my body that resemble acne do not look like typical acne. They are small and appear on my chest, upper left arm, and thi...
Dr. Zhang Zhibo Reply:
Hello: If you have concerns about the rash on your body, it is best to consult a physician, as the affected area may also indicate keratosis pilaris: http://www.dermnetnz.org/acne/keratosis-pilaris.html. This condition is related to allergic tendencies; some individuals may not e...[Read More] Understanding the Differences Between Folliculitis and Acne: Your Dermatology Questions Answered
Can You Swim in a Pool While Treating Tinea Versicolor?
Can I swim in a pool while being treated for tinea versicolor? Hello Dr. Tsai, I am currently being treated for tinea versicolor and using medication as well as Renshan Lishu for bathing. I used to swim in the pool every day. Is it safe to continue swimming in the pool while havi...
Dr. Cai Changlin Reply:
Hello: Tinea Versicolor often recurs in humid and hot environments. If you continue to swim after treatment, please remember to dry off thoroughly before putting on your clothes. If a recurrence occurs, make sure to seek medical attention promptly for medication. For patients who...[Read More] Can You Swim in a Pool While Treating Tinea Versicolor?
Understanding White Bumps Around Areola and Other Skin Issues: Causes and Treatments
There are small white bumps under the skin around the areola? The small white bumps under the skin around the areola and on the scrotum that can be squeezed to release a white substance resembling acne are likely sebaceous cysts or sebaceous glands. These are generally harmless a...
Dr. Cai Changlin Reply:
Hello: The areas around your areola and scrotum appear to be benign sebaceous gland hyperplasia. Please refrain from squeezing them to avoid inflammation, but there is no need for topical medication or oral treatment. If you are concerned, it is best to have a physician evaluate ...[Read More] Understanding White Bumps Around Areola and Other Skin Issues: Causes and Treatments
Effective Solutions for Chronic Folliculitis: Expert Advice Needed
Folliculitis Consultation Hello Doctor: I've been troubled by folliculitis for several years. It used to occur on my chest and back, but last year it spread to my calves, and this year it's quite severe on both arms. I've visited the clinic multiple times, but ther...
Dr. Zhang Zhibo Reply:
Hello, There are many causes of folliculitis. Some are simply due to follicular obstruction leading to an inflammatory response, while others may be caused by bacterial, fungal, viral, or parasitic infections. Additionally, some individuals may have it as part of an autoimmune ...[Read More] Effective Solutions for Chronic Folliculitis: Expert Advice Needed
Understanding Eczema: Symptoms and Treatment for Summer Skin Issues
Eczema Hello doctor, every summer I get small, bubble-like bumps on my fingers, and I also have red, round-shaped rashes on other parts of my body. Could this be eczema? What should I do?
Dr. Huang Ruiyun Reply:
Hello: This is a type of eczema called sweat dermatitis. If it is not too bothersome, you may ignore it. If it is causing significant itching, please consult a dermatologist.[Read More] Understanding Eczema: Symptoms and Treatment for Summer Skin Issues
Understanding Persistent Redness and Peeling Near the Nose: Skin Condition Insights
There is a red, swollen area about the size of a 50 NT dollar coin near the cheek close to the nose, accompanied by peeling skin? Hello Dr. Huang, I have been troubled by a skin issue for several years. My skin was generally good until my sophomore year (about 4.5 years ago) whe...
Dr. Huang Ruiyun Reply:
Hello: I apologize, but online diagnosis is not permissible. Based on your clues: 1. Rosacea and seborrheic dermatitis can sometimes be difficult to differentiate; 2. If it occurs only on the face (head and neck) in adults, it should not be diagnosed as atopic dermatitis. I still...[Read More] Understanding Persistent Redness and Peeling Near the Nose: Skin Condition Insights
Dealing with Dry Skin: Solutions for Your Troubling Skin Issues
My skin is terrible! I used to have oily skin on my face, but now I don't know what happened! My facial skin has become very dry and is constantly peeling, and this issue is bothering me!! It's really frustrating!! I switched to a cleanser with moisturizing properties, ...
Dr. Cai Changlin Reply:
Hello, Regarding the issue you mentioned, here are my responses: There are many causes of dry, peeling skin. If it has already occurred, it is important to identify and eliminate the underlying cause. Common factors include the use of inappropriate cleansing products, failure t...[Read More] Dealing with Dry Skin: Solutions for Your Troubling Skin Issues
Understanding Darkening at the Corners of Your Mouth: Causes and Remedies
Darkening of the corners of the mouth? My mouth corners are sometimes dry and itchy, and I've recently noticed a trend of darkening at the corners (this has happened before and resolved, but I forgot the exact cause since different doctors provided different answers). What s...
Dr. Huang Ruiyun Reply:
Hello: It is most likely post-inflammatory hyperpigmentation, which refers to the marks left after a skin condition has resolved. As long as the previous skin condition does not flare up again, the pigmentation will gradually fade over time. I cannot prescribe medication without ...[Read More] Understanding Darkening at the Corners of Your Mouth: Causes and Remedies
Effective Scar Treatment and Skin Tone Enhancement for Intimate Areas
Is there a way to solve this? Hello, Dr. Jiang. I would like to ask about a year ago I underwent a circumcision, but the scar is still very noticeable and there is still a color difference. I would like to know how to reduce the scar. Additionally, I would like to know how to inc...
Dr. Jiang Yujiao Reply:
Postoperative scars will fade over time. Scar improvement ointments can accelerate the fading of scars. Skin color is hereditary and has a constitutional basis; the feasibility and timeliness of localized tanning are limited. Wishing you peace and health. Sincerely, Dr. Jiang Yu-...[Read More] Effective Scar Treatment and Skin Tone Enhancement for Intimate Areas
Concerns About Acne Treatment: When to Consult a Dermatologist?
About the skin? I would like to ask about my worsening chin condition. I've been taking isotretinoin for over three months, one pill daily, but I don't see any improvement. When I asked my friends, they said they thought my skin looked better before I started the medica...
Dr. Cai Changlin Reply:
Hello: Regarding your question, oral isotretinoin is currently the only medication that effectively inhibits the main mechanisms involved in acne formation, including sebaceous activity, keratin metabolism, inflammation, and Propionibacterium acnes. It is especially the first-lin...[Read More] Concerns About Acne Treatment: When to Consult a Dermatologist?
Post-Cryotherapy Care for Viral Warts: Essential Tips for Parents
Post-treatment care for viral warts after cryotherapy? My fourth-grade son received cryotherapy for plantar warts at the dermatology clinic. How should I manage his wound regarding the contagious warts? How can I prevent transmission to other family members? Is the contagiousness...
Dr. Huang Ruiyun Reply:
You can apply iodine to the wound and cover it with a bandage. Avoid submerging it in dirty water, and refrain from swimming or soaking in hot springs for the time being. If a large blister forms and remains intact, you should see a dermatologist for further management. The infec...[Read More] Post-Cryotherapy Care for Viral Warts: Essential Tips for Parents
Understanding Skin Health: A Guide to A-Retinoids and Treatment Progress
About the skin? I am currently using one capsule of retinoic acid daily and have started applying Silian ointment for about three months. When can I expect to see improvement, or is it still in the detoxification phase? It feels like the signs of improvement on my face are quite ...
Dr. Cai Changlin Reply:
Hello, regarding your question, I would like to respond as follows: The oral isotretinoin you are using is currently known in the medical field as the most effective last-line treatment for acne. However, even so, patients with cystic acne typically require a longer treatment dur...[Read More] Understanding Skin Health: A Guide to A-Retinoids and Treatment Progress
Skincare Tips for Combination Skin: Moisturizers and Concealer Choices
Spots~~~ Dry cheeks and an oily nose indicate combination skin. For moisturizing, it's best to use a lightweight, oil-free moisturizer that hydrates without adding excess oil. When covering spots, it is generally recommended to use a concealer and foundation that match you...
Dr. Cai Changlin Reply:
Hello: Regarding your question, I would like to respond as follows. The usage of whitening creams varies depending on their ingredients; some can be used during the day, while others are strictly prohibited for daytime use. Since I am unaware of the specific type of whitening cre...[Read More] Skincare Tips for Combination Skin: Moisturizers and Concealer Choices
Understanding Skin Issues: Heat Rash, Allergies, and Moisturizing Solutions
Skin issues Hello: The rash you mentioned and the pictures you provided show that my red spots are small and differ from the images. The main issue is that they become very itchy when it's hot. I have seen a doctor, and some doctors said it is heat allergy, a type of urticar...
Dr. Zhang Zhibo Reply:
Hello: Heat rash, which is a type of eczema related to heat, primarily involves basic treatment that focuses on removing triggering factors and keeping the skin dry and the environment well-ventilated. The use of topical anti-itch medications or mild topical corticosteroids can i...[Read More] Understanding Skin Issues: Heat Rash, Allergies, and Moisturizing Solutions
Understanding Painful Groin Bumps: Causes and When to Seek Help
A painful lump has appeared in the groin area? Hello Doctor: For the past year or two, I have frequently developed a painful lump in the left groin area (upper thigh) before and after my menstrual period. It appears slightly red or skin-colored, has no head to squeeze (it seems t...
Dr. Cai Changlin Reply:
Hello, regarding your question, I would like to respond as follows: Due to the descriptions in your letter, it is not clear what the lesion looks like and its exact location (is it on the thigh or in the groin? The diseases associated with lesions in these two areas are completel...[Read More] Understanding Painful Groin Bumps: Causes and When to Seek Help