Hard Lump on Lower Back: Tumor or Muscle Strain?
There is a hard lump in the right posterior area of the lower back? Today, I discovered a hard lump about the length of my little finger on the right side of my lower back, which is tender to the touch. Previously, I have experienced lower back pain that made it difficult to bend...
Dr. Huang Ruiyun reply Dermatology
Hello: Please see a surgeon. Wishing you safety.[Read More] Hard Lump on Lower Back: Tumor or Muscle Strain?
Effective Treatments for Acne and Itchy Rashes: A Dermatologist's Guide
What topical ointments can be used for acne? What topical ointments can be used for acne? My husband sweats a lot, and his buttocks are always covered with red rashes that are itchy. What could be the cause, and how should it be treated?
Dr. Huang Ruiyun reply Dermatology
Hello: One of the agreements that consulting physicians on this website must follow is that consultations are limited to medical inquiries only; no diagnoses or prescriptions will be provided. If a consultation is needed, it is recommended that patients visit a hospital for treat...[Read More] Effective Treatments for Acne and Itchy Rashes: A Dermatologist's Guide
Should You Worry About New Skin Bumps After Wart Treatment?
Small nodules suspected? Dear Dr. Huang: I previously had warts and underwent treatment for over three months, which was successful. Now, after more than two months, I have recently noticed what appears to be a small bump (I'm not sure if it's a wart). Should I rush to ...
Dr. Huang Ruiyun reply Dermatology
Hello: I apologize, but according to regulations, a diagnosis cannot be made without personally examining the patient. In other words, online diagnosis is not permitted. You can wait for a while (a few weeks) to see if it really increases in size, and if it does, then you should ...[Read More] Should You Worry About New Skin Bumps After Wart Treatment?
Are Deodorants and Perfumes Harmful to Your Health?
Perfume, deodorant I would like to ask the doctor: Recently, news reports have stated that indoor air fresheners can cause cancer. So, if I use deodorants, antiperspirants, or perfumes, will long-term use be harmful to the body? Thank you.
Dr. Huang Ruiyun reply Dermatology
Hello: Currently, there is not enough evidence. Wishing you safety.[Read More] Are Deodorants and Perfumes Harmful to Your Health?
Understanding Nail Issues in Young Children: Causes and Concerns
Nail issues in children? Hello, doctor. Recently, I noticed that my child (a little over 3 years old) has nails that are lifting from the nail bed, but the tips of the nails are still attached, and he doesn't seem to be in any pain. What could be the issue? Why might these s...
Dr. Huang Ruiyun reply Dermatology
Hello: I apologize, but according to regulations, a diagnosis cannot be made without personally seeing the patient. In other words, online diagnosis is not permitted. If you are truly troubled, please see a doctor in person. Wishing you peace of mind.[Read More] Understanding Nail Issues in Young Children: Causes and Concerns
Understanding Warts: Infection Risks and Concerns Explained
What is the issue with warts? I apologize for the length of my message, but I have a few questions regarding warts. About one to two years ago, I had a wart on the sole of my foot, but I believe it has resolved since it no longer hurts and I have received treatment. However, I wo...
Dr. Huang Ruiyun reply Dermatology
Hello: You have stigmatized warts, but they are actually quite common in outpatient settings, or rather, a frequent human infection. Many people have had warts for a long time, and often only one or two, indicating that their contagiousness is not very high. There are over a hund...[Read More] Understanding Warts: Infection Risks and Concerns Explained
Effectiveness of Liquid Nitrogen Laser for Treating Facial Spots
Cryolaser Is liquid nitrogen cryotherapy effective for spots that have been present since elementary school? The spots are concentrated on the left side of the face and neck. What are the post-operative care instructions? Thank you.
Dr. Huang Ruiyun reply Dermatology
Hello: "Cryotherapy with liquid nitrogen" is not the same as "laser treatment"; the two are completely different. You should personally visit a dermatologist for an examination, diagnosis, and to evaluate the best course of action. I'm sorry, but online d...[Read More] Effectiveness of Liquid Nitrogen Laser for Treating Facial Spots
Understanding Red Rash After Beach Visits: Causes and Solutions
Red rashes on the skin? Hello Doctor: Yesterday I went to the beach, and after returning home, I started developing red rashes on my body in the evening. They appeared on my hands, feet, and back. In some areas, there is only one spot, while in others, there are several. Sometime...
Dr. Huang Ruiyun reply Dermatology
Hello: I apologize, but according to regulations, I cannot diagnose a disease without having seen the patient in person. If you are truly troubled, please seek medical attention in person. Wishing you peace of mind.[Read More] Understanding Red Rash After Beach Visits: Causes and Solutions
Peeling Skin on Toddler's Toes: Causes and Treatment Options
A two-year-old child has peeling skin on all toes? A two-year-old child has recently been experiencing peeling skin near the toenails, and there is also some peeling on the fingers. The child usually stays at home and wears slippers, while two other children do not have this issu...
Dr. Huang Ruiyun reply Dermatology
Hello: I apologize, but according to regulations, I cannot diagnose a condition without seeing the patient in person. You may apply petroleum jelly or hand cream, but please refrain from using any medication for now. If it is truly bothersome, please seek medical attention in per...[Read More] Peeling Skin on Toddler's Toes: Causes and Treatment Options
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 Dermatology
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
Small Bump on the Back of the Penis: What You Need to Know
There is a small bump on the dorsal side of the penis? There is a small flesh-colored bump on the skin on the dorsal side of the penis that looks like a surgical stitch. It is slightly smaller than a mung bean and has been present for several years. It resembles a small blister b...
Dr. Huang Ruiyun reply Dermatology
Hello: I apologize, but according to regulations, a diagnosis cannot be made without personally seeing the patient. If you are truly troubled, please consult a urologist in person. Wishing you the best.[Read More] Small Bump on the Back of the Penis: What You Need to Know
Understanding Small Skin Bumps: When to Seek Dermatological Advice
Bumps that resemble mosquito bites? I recently noticed a small bump on my right forearm that resembles a mosquito bite, about the size of a sesame seed. It has been there for many years, and it is usually not itchy, painful, or red. The surface is smooth and there is no opening. ...
Dr. Huang Ruiyun reply Dermatology
Hello: I apologize, but according to regulations, a diagnosis cannot be made without personally seeing the patient. If you are truly troubled, please seek medical attention in person. Wishing you peace of mind.[Read More] Understanding Small Skin Bumps: When to Seek Dermatological Advice
Understanding the Treatment and Causes of Pityriasis Alba
Treatment of Pityriasis Alba If medication is applied, how long will it take to heal? Also, what conditions can trigger pityriasis alba?
Dr. Huang Ruiyun reply Dermatology
Hello: Pityriasis alba is a common condition characterized by slightly lighter patches of skin in children or adolescents, which does not require treatment and typically resolves naturally in adulthood. Applying medication is actually ineffective; it provides a psychological effe...[Read More] Understanding the Treatment and Causes of Pityriasis Alba
Laser Treatment for Corns: Pain, Recovery, and Insurance Coverage Explained
Issues with Laser Treatment for Corns I developed two plantar warts (one on the left foot and one on the right foot) while serving in the military at the age of 24 (in 1992). After undergoing surgical excision in 1997 and cryotherapy (liquid nitrogen) in 2003, the warts still rea...
Dr. Huang Ruiyun reply Dermatology
Hello: First, it is important to distinguish whether the diagnosis is a corn or a viral wart. This should be determined by a clinical physician through direct examination. A corn is a thickened skin area that develops due to improper pressure on the foot, usually related to the a...[Read More] Laser Treatment for Corns: Pain, Recovery, and Insurance Coverage Explained
How to Restore Your Skin Tone After Sun Exposure
How to lighten skin after tanning? Hello: I previously went out wearing short sleeves, so my arms got a bit tanned. How can I lighten them back to their original color? Should I wear long sleeves for sun protection?
Dr. Huang Ruiyun reply Dermatology
Yes.[Read More] How to Restore Your Skin Tone After Sun Exposure
Effective Medical Treatments for Skin Whitening: What You Need to Know
Skin whitening What medical methods can be used for skin whitening?
Dr. Huang Ruiyun reply Dermatology
Intense Pulsed Light (IPL) or rejuvenating whitening laser (many devices are available, including those at Chang Gung Memorial Hospital).[Read More] Effective Medical Treatments for Skin Whitening: What You Need to Know
Can Faba Bean Patients Use Acne Cream? Expert Advice on Safety
Please provide the content you would like me to translate into English? Hello, can patients with Favism use the Apricot Blossom Acne Lotion (Taiwan FDA Drug Code 033153)? When I visited Chang Gung Hospital, the doctor prescribed this ointment for me to apply, but I later noticed ...
Dr. Huang Ruiyun reply Dermatology
Hello: Its ingredient is precipitated sulfur, which is for external use only and is not included in the list of contraindications for patients with favism. It is possible that the labeler confused it with other sulfur-containing compounds; some labels from Hsin Kuei Pharmaceutica...[Read More] Can Faba Bean Patients Use Acne Cream? Expert Advice on Safety
Understanding Male Pattern Baldness and Finasteride: Key Questions Answered
Androgenetic alopecia and issues related to the use of medications? 1. Is the degree of hair loss in male pattern baldness proportional to sexual activity? 2. Besides the combination of finasteride and minoxidil, are there other methods to increase hair density? 3. Since fina...
Dr. Huang Ruiyun reply Dermatology
Hello: 1. Completely unrelated. 2. Hair transplantation. 3. Safe sexual practices. Hepatitis B is also a sexually transmitted infection. 4. Individual responses vary; you won't know until you try. (The dosage of finasteride for treating male pattern baldness is only a quarte...[Read More] Understanding Male Pattern Baldness and Finasteride: Key Questions Answered
How to Prevent Blackheads and Fatty Bumps on Your Skin
Nasal comedones and sebaceous cysts? Hello, doctor. I have many blackheads on the tip of my nose, and my pores seem a bit enlarged. I have gone to a beautician for facial treatments, and it became very clean, but soon it became congested again. Additionally, I have small white bu...
Dr. Huang Ruiyun reply Dermatology
Hello: This is a constitution that cannot be completely eliminated; dietary changes and hygiene have limited effects. I hope that one day you can accept it calmly. Wishing you peace.[Read More] How to Prevent Blackheads and Fatty Bumps on Your Skin
Effective Solutions for Oily Scalp: Tips and Treatments
Oily scalp Hello Doctor: I have been struggling with oily hair since childhood, to the point where I hesitate to go out with family and friends. I have visited dermatology multiple times, and the doctors have prescribed Polytar tar shampoo for treatment, but it doesn't seem ...
Dr. Huang Ruiyun reply Dermatology
Hello: 1. Do not stay up late; go to bed by 11 PM at the latest, and maintaining a regular sleep schedule is the highest priority. 2. Wash your hair twice each time. The first wash should be with a cleansing shampoo, such as Kao's Soft and Smooth (green) or L'Oreal'...[Read More] Effective Solutions for Oily Scalp: Tips and Treatments