Understanding Small Blisters on Fingers: When to See a Doctor
Small blisters on the hand? Hello Dr. Du, I have recently developed many small blisters on my fingers. I'm not sure if I should see a doctor, if they will go away on their own, or if I can just pop them. I'm also curious about what might be causing these small blisters....
Dr. Du Zhiqiang reply Dermatology
Dear Joan: The small blisters on your fingers may be caused by the recent humid and unstable weather or excessive hand washing related to your work, which can lead to what is known as "sweat rash." It is advisable to consult a doctor for examination, and it is not recom...[Read More] Understanding Small Blisters on Fingers: When to See a Doctor
Does Hyperthyroidism Cause Acne? Understanding Skin Reactions to Medication
Can hyperthyroidism cause acne? Hello doctor, I was diagnosed with hyperthyroidism in early March. After taking medication for about a week, I noticed signs of acne and stopped the medication. Then, in early June, I had blood tests again and after taking the medication for anothe...
Dr. Du Zhiqiang reply Dermatology
Dear Cai Cai, There are not many reports linking hyperthyroidism to acne; however, medications containing iodine used for hyperthyroidism can cause acne. Proper adjustment of the medication dosage, along with the use of topical and oral acne treatments, can help suppress the occ...[Read More] Does Hyperthyroidism Cause Acne? Understanding Skin Reactions to Medication
Seasonal Itching: Effective Solutions for Persistent Skin Issues
Skin itching issues? Hello doctor, I have a seasonal itching sensation in my legs that starts from my calves and gets progressively itchier, with the affected area expanding and even extending to my thighs. Recently, my legs have started to flare up again. I have tried applying m...
Dr. Du Zhiqiang reply Dermatology
Dear Xuan, Hello. The causes of seasonal itching from the calves to the thighs are numerous. A clinical interview and dermatological examination are necessary; do not use medication indiscriminately to avoid adverse effects. Wishing you safety and health, Dr. Du Zhi-Liang ...[Read More] Seasonal Itching: Effective Solutions for Persistent Skin Issues
Understanding Changes in Moles: When to Seek Dermatological Advice
Regarding moles on the body? Hello, doctor. I would like to ask you about a mole on my thigh. Recently, this mole has been painful and itchy, and there is some discharge. This morning, I noticed that it has started to peel; it was originally black and has now turned a light brown...
Dr. Du Zhiqiang reply Dermatology
Dear Jackie: Changes in moles, especially if there is discharge and pain or itching, may be due to inflammation caused by friction. Color changes, if there are no clinical symptoms present, are usually difficult to determine as malignant or benign. If you have any doubts, please ...[Read More] Understanding Changes in Moles: When to Seek Dermatological Advice
Which Specialist Should I See for a Growth on My Eyelid?
Which outpatient department should I visit? You should see an ophthalmologist for the growth resembling a tumor on the fold of your left eyelid.
Dr. Du Zhiqiang reply Dermatology
Dear Astro: The growth on your left eyelid resembles a sarcoma. You may consult an ophthalmologist, a plastic surgeon, or a dermatologist. It is important to determine the type of lesion in order to decide on the appropriate treatment. Wishing you safety and health. Sincerely, Dr...[Read More] Which Specialist Should I See for a Growth on My Eyelid?
Understanding Skin Spots: Should You See a Dermatologist or Cosmetic Specialist?
Spot issues Hello, Dr. Du. I previously visited a clinic regarding some spots, and the doctors advised against removing them due to potential side effects. I would like to hear your opinion. If I still want to remove the spots, should I first see a dermatologist or a medical aest...
Dr. Du Zhiqiang reply Dermatology
Dear Joanna, Hello, whether to "remove" spots is a matter of aesthetics and personal preference; there is no absolute yes or no. However, it is essential to first visit a clinic to determine the type of spots, whether they can be removed, and what methods can be used f...[Read More] Understanding Skin Spots: Should You See a Dermatologist or Cosmetic Specialist?
Are There Side Effects of Aluminum Silicate in Antiperspirants?
Does aluminum silicate have any side effects? Hello, during my time in graduate school, my roommate had a habit of using an antiperspirant that contains "aluminum silicate." I had previously mentioned my concerns to him, but he continued to use it. Now, after five years...
Dr. Du Zhiqiang reply Dermatology
Hello: The main ingredient of antiperspirants is aluminum chloride in aqueous form, not aluminum silicate. The so-called "dust" from the spray is minimal and does not pose a health risk, so there is no need for concern. If this "antiperspirant" had any adverse...[Read More] Are There Side Effects of Aluminum Silicate in Antiperspirants?
Understanding a Hard Lump on Your Back: Causes and Concerns
There is a hard lump on the back? Recently, I discovered a hard lump about the size of a 10 NT dollar coin located just above my right rib. It appears somewhat prominent on the outside, and pressing it does not cause any pain. It feels as if something is lodged beneath the skin, ...
Dr. Du Zhiqiang reply Dermatology
Hello: A painless hard lump under the skin that is movable is most likely a benign tumor, such as a lipoma, a sebaceous cyst, or a neuroma. If it is located deeper, you may consult a general surgeon; if it is more superficial, please visit the dermatology department to determine ...[Read More] Understanding a Hard Lump on Your Back: Causes and Concerns
How to Restore Dented Calves After Injury: Dermatology Insights
How can I restore the appearance of sunken calves? Hello, two months ago, I accidentally fell down four or five steps while going downstairs and hit the front of my right calf. I immediately applied ice, and the swelling subsided quickly within two to three days. However, the pre...
Dr. Du Zhiqiang reply Dermatology
Dear Meimei: After a contusion, if there is a depression in the calf, you may observe it for a short period. However, if it does not improve with warm compresses, it may indicate severe damage to the deeper subcutaneous tissues, resulting in a loss of subcutaneous connective tiss...[Read More] How to Restore Dented Calves After Injury: Dermatology Insights
Understanding the Effects of Stopping Minoxidil for Hair Loss
Rogaine Hair Growth Solution If you stop using Minoxidil, not only will the hair that grew due to Minoxidil fall out, but even the hair that was originally there may enter a prolonged resting phase. In other words, once you start using Minoxidil, is it necessary to continue? Othe...
Dr. Du Zhiqiang reply Dermatology
Discontinuation of use can lead to fragile newly grown hair, and it is common for this hair to fall out. This shedding is not necessarily due to stopping the treatment, nor does it cause the original hair to enter the telogen phase. Stopping the treatment will not result in incre...[Read More] Understanding the Effects of Stopping Minoxidil for Hair Loss
Understanding Keloids and Skin Lightening Creams: Key Concerns
Issues with whitening creams and keloids? Hello Dr. Du, I am unable to open the attached file you sent me. Could you please forward it to this email address? Additionally, I would like to ask if injecting a keloid will affect the fading of the pigmentation in the future. Currentl...
Dr. Du Zhiqiang reply Dermatology
The injection used for keloid treatment is a corticosteroid, and the standard treatment in major hospitals is to administer it every two weeks or once a month. After the injection, some of the original melanin may be removed, and due to the thinning of the skin, the blood vessels...[Read More] Understanding Keloids and Skin Lightening Creams: Key Concerns
Understanding Laser Treatment for Freckles and Acne Concerns
Laser treatment for freckles can cause acne breakouts. Please inquire further? Hello Dr. Du, could you please help me respond to the question regarding the phrase "only &<a href='https://adoctor.tw/article/65282'>#65282</a>; effective &<a hre...
Dr. Du Zhiqiang reply Dermatology
Dear Ah Hsuan: Please find the detailed response in the attached file. Wishing you peace and good health. Sincerely, Dr. Du Zhi-Liang, Director of the Dermatology Department, Taoyuan General Hospital, Ministry of Health and Welfare.[Read More] Understanding Laser Treatment for Freckles and Acne Concerns
Reappearing Moles After Surgery: What You Need to Know
Mole regrowth after surgical removal? Hello Doctor: Two years ago, I discovered a raised black mole about 0.4 cm on my areola. Since it sometimes itches, I went to a medical center in Taipei for surgical excision. The pathology results after the surgery were benign. However, in t...
Dr. Du Zhiqiang reply Dermatology
It is possible for a mole to regrow after excision if the removal was not deep enough (as it is difficult to visually assess the depth of the mole). Since it is benign, you can return to the original hospital for another procedure without worrying about Dr. Du's follow-up.[Read More] Reappearing Moles After Surgery: What You Need to Know
Understanding and Treating Itching Around the Genital Area
Itch!! Hello Dr. Du: Recently, I have been experiencing itching around the anal area, as well as on the scrotum and the skin of the penis. Sometimes the itching is mild, but at other times it becomes unbearable, leading me to scratch the area, which seems to have caused some skin...
Dr. Du Zhiqiang reply Dermatology
Hello, prolonged wearing of underwear in males can lead to increased humidity and sweating in the genital area, which may trigger sensitivity of the itch nerves, often resulting in moist dermatitis. It is advisable not to scratch excessively, as this can lead to bacterial infecti...[Read More] Understanding and Treating Itching Around the Genital Area
Understanding Hand Warts and STDs: Your Questions Answered
Viral warts on the hands, sexually transmitted infections (STIs)? Hello, Doctor: Self-introduction: I have a history of "viral warts" on my hands, so when I notice small growths on my hands, I immediately go to the hospital for examination and electrosurgery. However,...
Dr. Du Zhiqiang reply Dermatology
Dear Xiao Gao, Viral warts are contagious, but currently, we need to determine if you have any infections in the genital area through a clinical examination. To check for sexually transmitted infections, primarily syphilis, HIV, and chlamydia, a serological test will be performe...[Read More] Understanding Hand Warts and STDs: Your Questions Answered
Understanding Ear Cysts: Surgical and Non-Surgical Treatment Options
Ossicular cholesteatoma I have a sebaceous cyst on the upper edge of my ear. Is it possible to surgically remove it? If I prefer not to have surgery, are there better treatment options for the cyst? Is there any risk associated with the surgery? I have photos that I can provide f...
Dr. Du Zhiqiang reply Dermatology
Dear Wallance, The development of a sebaceous cyst on the external ear is a common condition. Surgery can be performed under local anesthesia, involving incision, drainage, and suturing, and it is not considered dangerous. However, it is important to confirm whether the cyst is ...[Read More] Understanding Ear Cysts: Surgical and Non-Surgical Treatment Options
How to Tackle Persistent Scalp Odor: Effective Solutions for Relief
Scalp odor? Since I started using Sassoon shampoo at the age of 17, my scalp has developed a kind of "sour" odor. If I don't wash my hair for a day or if I wash it the night before, by the next afternoon, the smell returns. This issue has persisted for over ten yea...
Dr. Du Zhiqiang reply Dermatology
Hello, if you have a foul odor coming from your scalp, it's difficult to make a diagnosis without a clinical examination. Generally, this could be due to excessive oily secretion. When washing your hair daily, check for any scratches on the scalp that could lead to infection...[Read More] How to Tackle Persistent Scalp Odor: Effective Solutions for Relief
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 Dermatology
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 Frontal Hair Loss: Causes, Genetics, and Solutions
Frontal two-thirds alopecia Dear Doctor: I've noticed that the hairline on both sides of my forehead seems to be getting higher lately, and it feels like I'm starting to experience hair loss. My father and grandfather also had similar hair patterns, and from the front, ...
Dr. Du Zhiqiang reply Dermatology
Dear Mr. Liao, Hello, your hair loss appears to be male pattern baldness, characterized by an M-shaped hairline that recedes. Some individuals experience this at an early age; 27 is considered early, but clinically, it can occur as early as 21-22 years old, although such cases a...[Read More] Understanding Frontal Hair Loss: Causes, Genetics, and Solutions
How to Effectively Treat and Remove Keloids on Your Skin?
How to remove keloids? What medications can be applied for keloids? How long does it take to resolve?
Dr. Du Zhiqiang reply Dermatology
Dear Ah-Hsuan, Keloids are a common issue related to hypertrophic scar tissue of the skin. Depending on the size of the lesion, the most common treatment involves local injection of corticosteroids. Cryotherapy using liquid nitrogen is also an option. For those concerned about p...[Read More] How to Effectively Treat and Remove Keloids on Your Skin?