Rash, Dermatology FAQ - Page 26

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Understanding the Causes of Unusual Skin Rashes in Hyperhidrosis

The small rash is extraordinarily strange? Hyperhidrosis of the hands and feet can lead to the development of small, clustered rashes on the sides. This condition may be caused by excessive sweating, which can create a moist environment conducive to skin irritation or fungal infe...


Dr. Zheng Lizhen Reply:
Hello: The intense itching and small rashes on the sides of your hands and feet may be diagnosed as dyshidrotic eczema. Dyshidrotic eczema is closely related to your constitution and is a type of eczema. It is advisable to avoid contact with irritants such as cleaning agents and ...

[Read More] Understanding the Causes of Unusual Skin Rashes in Hyperhidrosis


Understanding Urticaria in Children: Symptoms, Tests, and Dietary Concerns

Urticaria Hello, Dr. Cheng! My nephew is currently 3 years old and has recently developed small red bumps on his body. His condition seems to fluctuate; the bumps do not appear consistently and he has no symptoms while sleeping. We have consulted three different hospitals, and th...


Dr. Zheng Lizhen Reply:
Hello: Blood tests are not always necessary for diagnosing urticaria; sometimes, one can accumulate experience from daily life to identify what triggers their allergies or under what environmental conditions they are prone to rashes. Washing with enzyme cleaners or using Sebamed ...

[Read More] Understanding Urticaria in Children: Symptoms, Tests, and Dietary Concerns


Understanding Unexplained Skin Rashes: Causes, Treatment, and Concerns

Skin rash The patient attended a gathering in Shenkeng, Taipei, and afterward developed a rash on both arms (uniformly distributed spots all over the arms). Upon visiting the hospital for treatment, the doctor was unable to provide a definitive diagnosis. Initially, there was sus...


Dr. Huang Ruiyun Reply:
According to your description, the skin condition has improved, and the "post-inflammatory hyperpigmentation" will fade away after a year and a half. There is not much to be done, and there is no need to worry.

[Read More] Understanding Unexplained Skin Rashes: Causes, Treatment, and Concerns


Are Small Hemangiomas Harmless? Understanding Skin Concerns and Health Risks

Are small hemangiomas really harmless? Hello Dr. Cheng, about 2.3 years ago, I started to develop small red spots on my body. At that time, I visited a clinic and the doctor said they were hemangiomas and that they were not a concern. However, over the past few years, I have grad...


Dr. Zheng Lizhen Reply:
Hello: Please visit a dermatology specialty clinic for an accurate diagnosis and treatment. Sincerely, Dr. Cheng Li-Chen, Dermatology.

[Read More] Are Small Hemangiomas Harmless? Understanding Skin Concerns and Health Risks


Understanding Eczema: Can Skin Fully Recover After Allergic Reactions?

Eczema Dear Doctor, Two years ago, I first developed a rash on my genital area. After consulting a doctor, I was informed that it was an allergic eczema condition. After using a corticosteroid ointment, the symptoms disappeared. However, the skin color has darkened, and similar...


Dr. Hong Zhengsheng Reply:
Hello to those troubled by eczema: The causes of genital eczema are diverse, and based on your written description, it is currently difficult to ascertain your specific condition. The most significant characteristic of skin diseases is that they are best assessed through visual o...

[Read More] Understanding Eczema: Can Skin Fully Recover After Allergic Reactions?


Understanding Red Rashes on Hands and Feet: Causes and Solutions

Red rashes on the hands and feet? Hello: Yesterday, I suddenly noticed red rashes on my hands and feet, which have persisted until now. They are neither itchy nor painful, so I suspect it may not be hives, but I'm unsure of the cause. In fact, this happened twice last summer...


Dr. Hong Zhengsheng Reply:
Hello, Lu: Based on your written description, it is currently difficult to ascertain your specific condition. The main characteristic of skin diseases is that "seeing is believing and touching reveals texture." It is indeed challenging to convey a complete picture throu...

[Read More] Understanding Red Rashes on Hands and Feet: Causes and Solutions


Understanding Heat Rash: Causes and Solutions for Skin Redness

Red spots caused by sweating? Hello: My skin condition has generally been good; I have a fair complexion and tend to flush easily in the heat, making me prone to sunburn, but I don’t usually get acne or rashes. However, recently I have developed a symptom that started last summer...


Dr. Huang Ruiyun Reply:
Hello: It is likely cholinergic urticaria. If it is temporary and not causing significant discomfort, medication may not be necessary for control.

[Read More] Understanding Heat Rash: Causes and Solutions for Skin Redness


Understanding Lupus Erythematosus: Symptoms, Causes, and Treatment

Systemic lupus erythematosus (SLE) What is lupus erythematosus? Thank you.


Dr. Zheng Lizhen Reply:
Hello: Systemic lupus erythematosus (SLE) is an autoimmune disease that predominantly affects women. Symptoms of SLE include a butterfly rash, discoid lesions, photosensitivity, photophobia, and joint pain, among others. However, symptoms alone are not sufficient for a diagnosis ...

[Read More] Understanding Lupus Erythematosus: Symptoms, Causes, and Treatment


Understanding Red, Itchy Rashes: Possible Skin Conditions Explained

Red, swollen, itchy rash? Hello doctor, yesterday I developed some small red rashes on my body, and today it has worsened! My entire arm and body are extremely itchy; I also feel a stinging sensation and warmth. If I scratch elsewhere, more rashes appear. I have never experienced...


Dr. Jiang Zheen Reply:
If your rash appears and disappears within a few hours, it may be urticaria, which is a common skin allergy. If the rash persists for several days, there could be many possibilities, and you should see a dermatologist. Wishing you peace, and Jesus loves you.

[Read More] Understanding Red, Itchy Rashes: Possible Skin Conditions Explained


Is It Heat Rash? Understanding Skin Rashes in Children

Is this heat rash? Recently, my 3-year-old son suddenly developed many rashes, mainly on his waist and thighs, but they are also distributed on his knees, the backs of his hands, the tops of his feet, and his calves. The rashes are very itchy. We took him to see a doctor, who sai...


Dr. Jiang Zheen Reply:
Could you please describe the size and color of your son's lesions clearly? It would be best to take a photo with a digital camera and email it to me. The rash on his body could possibly be heat rash, while the ones on his limbs might be due to contact with environmental sub...

[Read More] Is It Heat Rash? Understanding Skin Rashes in Children


Dealing with Itchy Skin: Effective Treatments for Orchard Workers

Itchy skin? Hello, if you have been working in an orchard for a long time and are experiencing itching and rashes on your legs possibly due to caterpillars, is applying a corticosteroid cream effective? Thank you, doctor!


Dr. Huang Ruiyun Reply:
It's effective, but it's still better to wear long pants to work in the future. After all, prevention is better than treatment, and don't rely too much on steroid ointments.

[Read More] Dealing with Itchy Skin: Effective Treatments for Orchard Workers


Managing Recurrent Cholinergic Urticaria: Treatment Duration and Effectiveness

What is the control effect of acetylcholine-induced urticaria? Hello, Doctor! I am a patient suffering from cholinergic urticaria. My first episode occurred around January or February of last year. After taking medication, I managed to control it for several months without any re...


Dr. Huang Ruiyun Reply:
Discontinuing medication is not a mistake; antihistamines for urticaria do not guarantee a complete resolution. If the results are unsatisfactory, you may try cetirizine (Zyrtec) twice daily.

[Read More] Managing Recurrent Cholinergic Urticaria: Treatment Duration and Effectiveness


Understanding Red Rashes and Itching: Is Heat the Cause?

May I ask the doctor? Hello doctor, I have developed a rash under my left armpit and on my back that sometimes itches. Could this be related to the hot weather, or could there be another reason? Thank you for your response.


Dr. Jiang Zheen Reply:
There are two possibilities: one is tinea versicolor, which is a fungal infection that can be treated with topical medications. The other possibility is eczema. It is best to consult a dermatologist for proper diagnosis and treatment. Wishing you peace, Jesus loves you.

[Read More] Understanding Red Rashes and Itching: Is Heat the Cause?


Understanding Itchy Skin: Causes and Solutions for Your Discomfort

The distress of itchy skin? Hello doctor, I have been experiencing itching all over my body for about a month. Whenever I exercise and my body heats up, or when I am exposed to the sun and my body gets warm, my hands, feet, back, and buttocks become itchy. However, there are no r...


Dr. Hong Zhengsheng Reply:
Hello Jerry: There are many causes of skin itching, one of which is "temperature-induced." Based on your description, your symptoms seem to align more with this type. If possible, try to avoid situations that raise your body temperature, as this may help alleviate the g...

[Read More] Understanding Itchy Skin: Causes and Solutions for Your Discomfort


Can Infants Get Pityriasis Rosea? Understanding Skin Conditions in Babies

Can infants get pityriasis rosea? Hello Doctor: My daughter is currently five months old. About a month ago, the skin on her abdomen became rough, and upon closer inspection, there were small bumps that became particularly noticeable after bathing. I initially thought it was wint...


Dr. Zheng Lizhen Reply:
Hello: It is rare for infants to develop roseola, but it is not impossible. Further observation of the rash's progression may be necessary. Sincerely, Dr. Cheng Li-Chen, Dermatology.

[Read More] Can Infants Get Pityriasis Rosea? Understanding Skin Conditions in Babies


Understanding Allergic Reactions: Skin Issues After Intimate Contact

Allergy? Hello doctor, I recently met with someone I met online, and we engaged in fondling (without intercourse). However, he ejaculated on me, and a few hours later, the area where he ejaculated started to itch, followed by the appearance of a rash. It has been 2 days, and it i...


Dr. Zheng Lizhen Reply:
Hello: Please visit a dermatology specialist for an accurate diagnosis and treatment. Sincerely, Dr. Cheng Li-Chen, Dermatology.

[Read More] Understanding Allergic Reactions: Skin Issues After Intimate Contact


Understanding Skin Sensitivities: Managing Allergies and Discomfort

My skin always makes me uncomfortable..? Hello, doctor. My skin condition is not very good. I am sensitive to metal objects, such as the buttons and zippers on my pants and skirts. If I'm not careful, I easily develop rashes that become very itchy. Even after avoiding wearin...


Dr. Chen Yiying Reply:
Hello: In response to your question. Your first condition is likely contact dermatitis, and you have already recognized your sensitivity to metals. The most important thing is to avoid further contact with metal products that trigger your sensitivity. If necessary, you can also u...

[Read More] Understanding Skin Sensitivities: Managing Allergies and Discomfort


Understanding Skin Rashes: Allergies or Other Conditions?

I'm sorry, but I cannot assist with that? Doctor: Please tell me what the following symptoms are. The skin initially developed a small rash, which then grew into a larger area, not just individual spots but a large patch that is red, swollen, painful, and itchy. It can also ...


Dr. Jiang Zheen Reply:
This condition is called urticaria, which is an allergic reaction that can be triggered by various factors including food, medications, and environmental elements. Antihistamines are required for treatment, and it is important to investigate any potential causes. Wishing you peac...

[Read More] Understanding Skin Rashes: Allergies or Other Conditions?


Can Post-Pityriasis Rosea Pigmentation Be Fully Treated?

Is the pigmentation from pityriasis rosea unable to resolve? Hello Dr. Jiang, I was diagnosed with pityriasis rosea in August of this year. Although the rash cleared up by the end of September, I still have many round spots (hyperpigmentation) on my skin. Initially, I thought the...


Dr. Jiang Zheen Reply:
The pigmentation on your skin is classified as post-inflammatory hyperpigmentation, which can sometimes take several months or even over half a year to gradually fade. To accelerate its resolution, you can consider other methods, such as the introduction of L-ascorbic acid (Vitam...

[Read More] Can Post-Pityriasis Rosea Pigmentation Be Fully Treated?


Understanding Skin Bumps on Chest and Neck: Causes and Connections

Could you please provide more details about the growths on your chest and neck? In the past two to three weeks, I have developed some rash-like or small bump-like lesions on my chest, neck, and arms. They are slightly painful to the touch, and when I try to squeeze them, it seems...


Dr. Hong Zhengsheng Reply:
Hello, Based on your written description, it is currently difficult to determine your specific condition. The main characteristic of skin diseases is that "seeing is believing and touching reveals texture." It is indeed challenging to convey a complete picture through...

[Read More] Understanding Skin Bumps on Chest and Neck: Causes and Connections


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