Understanding Symmetrical Red Rash: Causes and When to Seek Help
Is it possible for a rash to present with a symmetrical distribution? Recently, the weather has been humid, and I have developed some red spots about 1-2 centimeters in diameter on my abdomen, buttocks, and thighs. The spots are slightly raised and can be painful when pressed. So...
Dr. Jiang Zheen Reply:
Your issue is more complex and should be addressed at a dermatology clinic. Your skin condition seems to be related to heat and is likely caused by blocked sweat glands and pores. Wishing you well.[Read More] Understanding Symmetrical Red Rash: Causes and When to Seek Help
Understanding Skin Issues: Itchy Red Spots and Rashes Explained
Poor skin condition all over the body..? Hello Dr. Jiang: 1. A few days ago, small red spots about 0.1 cm in size started appearing on my foot, which are itchy and increasing in number. What could this be? 2. Small red spots about 0.1 cm in size have also appeared on my hand re...
Dr. Jiang Zheen Reply:
Your condition is most likely scabies, which is a parasitic skin infection. Treatment is required, along with disinfection of clothing. Wishing you well.[Read More] Understanding Skin Issues: Itchy Red Spots and Rashes Explained
Understanding Red and Black Skin Rashes: Are They Signs of Skin Cancer?
Red and black rashes on the body? Hello, doctor. In recent years, I have developed several red and black spots on my body. The red ones are smaller and mostly on my limbs, while those on my abdomen are about 0.3 centimeters and numerous. The black moles on my body and shoulders a...
Dr. Jiang Zheen Reply:
Based on your description, the red and black spots on your skin should be normal, but the safest option is to consult a dermatologist for evaluation. Wishing you well.[Read More] Understanding Red and Black Skin Rashes: Are They Signs of Skin Cancer?
Understanding Chronic Skin Issues: Causes, Treatments, and Specialist Guidance
Skin issues? Hello, I am asking on behalf of my husband. He has been experiencing skin itching issues for a long time, and sometimes he develops rashes on his back, which can also interfere with his sleep. Whenever he takes medication, the itching temporarily subsides. However, w...
Dr. Jiang Zheen Reply:
Your husband's skin issue may be more complicated and might require some allergen testing. You should visit a dermatology department at a major hospital for evaluation. Allergen testing includes patch testing and blood tests for mast cell activation. Long-term use of antihis...[Read More] Understanding Chronic Skin Issues: Causes, Treatments, and Specialist Guidance
Understanding Skin Allergies: Red Bumps and Itching on Hands
Skin allergy ~ itching Red, bumpy rashes resembling chicken skin have appeared on my hands. They are itchy and swell when scratched. The rashes are only present on both hands, with the most severe area being around the elbows. I usually do not have allergic reactions to seafood, ...
Dr. Jiang Zheen Reply:
If the rash disappears within 24 hours, it is likely urticaria (hives). Many foods and medications can trigger this condition, and sometimes it is necessary to keep a long-term record of the relationship between diet and the rash. When experiencing skin allergies, it is best to a...[Read More] Understanding Skin Allergies: Red Bumps and Itching on Hands
Understanding Red Rashes on Joints: Causes and Treatment Options
Rash on the joints Dear Doctor: I often get small red rashes on the skin over my wrist joints, ankle joints, and knee joints. The rashes resemble mosquito bites, but they appear as a whole patch and are very itchy! They usually occur in the summer, and during flare-ups, my body f...
Dr. Huang Ruiyun Reply:
Online diagnosis is not possible; if you are truly troubled, please visit a dermatology clinic.[Read More] Understanding Red Rashes on Joints: Causes and Treatment Options
Understanding Scalp Folliculitis: Causes, Symptoms, and Treatment Options
Scalp folliculitis Doctor, I have been experiencing discomfort on my scalp since December. It was itchy and had red rashes and bumps. Eventually, the bumps would ooze pus, dry up, and then fall off, resembling the process of acne. I consulted a doctor who diagnosed me with seborr...
Dr. Zheng Lizhen Reply:
Hello: When folliculitis is severe, it can lead to hair loss. Whether it will result in baldness remains to be seen. Sincerely, Dr. Cheng Li-Chen, Dermatologist.[Read More] Understanding Scalp Folliculitis: Causes, Symptoms, and Treatment Options
Managing Allergies in Children: When to See a Specialist
Pediatric Allergies My son is 7 years old and has a hypersensitive constitution. During winter, he coughs continuously, feels like he has a lot of phlegm, and breathes loudly. He also catches colds easily, and each time he coughs non-stop and wheezes. In summer, he develops clust...
Dr. Huang Ruiyun Reply:
For nasal symptoms, consult an otolaryngologist; for skin symptoms, see a dermatologist; and for asthma, visit a pediatric specialist. Worrying excessively about the side effects of medications may actually harm your child.[Read More] Managing Allergies in Children: When to See a Specialist
Why Am I Getting Acne on My Neck After Clearing My Face?
The acne on my face has cleared up, but now it's appearing on my neck? Hello Doctor: Two months ago, I had acne on my cheeks and chin. After taking good care of them for a while, the acne improved significantly and was almost completely gone. However, recently I have develop...
Dr. Jiang Zheen Reply:
In general, acne treatment requires at least 2-3 months, so you need to continue treatment for a longer period to prevent recurrence. It is also possible for acne to appear on the neck, but it rarely causes significant itching. Wishing you well.[Read More] Why Am I Getting Acne on My Neck After Clearing My Face?
Understanding Dark Scars on the Skin: Causes and Treatment Options
Skin diseases Hello, doctor: One year ago, Xiao Xie had a red rash on the inner thigh that turned into a black scar after scratching. What could this situation be? Is it difficult to treat? Thank you.
Dr. Huang Ruiyun Reply:
This is post-inflammatory hyperpigmentation, which does not require treatment, but the fading process is very slow. As long as the localized area is no longer experiencing dermatitis, it is acceptable.[Read More] Understanding Dark Scars on the Skin: Causes and Treatment Options
Understanding and Managing Sudden Skin Rashes: Causes and Remedies
Rash on the body? Since last night, for unknown reasons, I have developed redness and swelling on my back, resembling mosquito bites, which has gradually spread across my body by this morning. My abdomen has also started to itch. Could you please advise on the possible cause, dia...
Dr. Huang Ruiyun Reply:
Online diagnosis is not possible; if the issue persists and is truly bothersome, you will need to see a doctor in person.[Read More] Understanding and Managing Sudden Skin Rashes: Causes and Remedies
Can Rabbit Allergies Cause Hives? Understanding Skin Reactions
Could you please provide more details about urticaria? Is it possible that the hives are caused by an allergy to rabbits? I recently got a rabbit, and the night after bringing it home, I started developing strange red spots all over my body, except for my face. Could this be due ...
Dr. Jiang Zheen Reply:
It is possible to be allergic to rabbit fur, but hives typically resolve within a few hours and then reappear. If your rash persists for several days, you should consider the possibility of a fungal infection from animals. Wishing you peace and may God bless you.[Read More] Can Rabbit Allergies Cause Hives? Understanding Skin Reactions
Understanding Body Heat-Induced Skin Tingling: Causes and Solutions
The body experiences a prickling sensation due to heat? Hello, doctor. During the fall, winter, and spring seasons, my body suddenly heats up, causing a level of tingling that drives me crazy. It feels like my body is undergoing some changes. For example, in winter, when I drink ...
Dr. Huang Ruiyun Reply:
Based on your symptom description, it is typical of cholinergic urticaria, which is an allergy to heat. You can visit a dermatologist for medication management to improve your quality of life.[Read More] Understanding Body Heat-Induced Skin Tingling: Causes and Solutions
Understanding Urticaria in Chronic Hepatitis C Patients: Key Considerations
Hello, doctor... I would like to ask about issues related to urticaria? I am a patient with hepatitis C. When I was younger, I experienced urticaria, which disappeared after my condition slightly improved in middle school. However, recently, I have started to develop rashes on my...
Dr. Jiang Zheen Reply:
A small number of urticaria cases are associated with hepatitis C. There shouldn't be any special considerations regarding medication; however, this type of urticaria may be more difficult to control. Wishing you peace and safety.[Read More] Understanding Urticaria in Chronic Hepatitis C Patients: Key Considerations
Understanding Pityriasis Rosea: Symptoms, Causes, and Care Tips
Regarding pityriasis rosea? I have read many articles about pityriasis rosea on this website, but they all seem to start from the body. Previously, I had small blisters on my hands, and when I visited a doctor, he said it was due to recent significant weather changes causing skin...
Dr. Huang Ruiyun Reply:
Actually, you may have one condition, while pityriasis rosea is another. Without seeing the actual case, I cannot provide an online diagnosis. The cause of pityriasis rosea is unknown, so there are no specific precautions to take; just avoid irritating it and let it resolve on it...[Read More] Understanding Pityriasis Rosea: Symptoms, Causes, and Care Tips
Understanding the Causes of Unexplained Skin Rashes
Red rashes have appeared on the body? Why hasn't a rash appeared?
Dr. Jiang Zheen Reply:
Please consult a physician.[Read More] Understanding the Causes of Unexplained Skin Rashes
Understanding Allergic Vasculitis: Is It Drug Allergy or Immune Issue?
I would like to inquire about allergic vasculitis. Is it related to drug allergies, or is it an issue with the immune system? In recent weeks, I have seen a doctor and taken medication for a cold and cough. Subsequently, I was prescribed antihypertensive eye drops due to elevated...
Dr. Huang Ruiyun Reply:
Allergies are a type of immune response, and medications are common triggers for allergic reactions. The cause of allergic vasculitis may be related to medications, but there are no definitive tests to confirm this. Therefore, it is advisable to follow the physician's recomm...[Read More] Understanding Allergic Vasculitis: Is It Drug Allergy or Immune Issue?
Understanding Sleep-Related Edema and Erythema: Causes and Insights
Insomnia causing generalized edema with erythema? My brother has had generalized edema-type erythema (tentative name) for many years, affecting his entire body from head to toe. The smallest lesions are 1 cm, while the largest can be 20 cm. They mostly appear during insomnia or w...
Dr. Jiang Zheen Reply:
If the rash disappears within a few hours to a day, it is likely urticaria (hives). If it lasts more than a day, there may be other causes, and a skin biopsy may be necessary to determine the diagnosis. Wishing you well.[Read More] Understanding Sleep-Related Edema and Erythema: Causes and Insights
Understanding Skin Issues: From Allergies to Rashes and Treatments
Skin issues? Hello Doctor, I have never had any skin-related diseases since childhood. Around the age of 16, I developed red patches all over my body that were very itchy. After consulting a dermatologist, I was diagnosed with scabies (I’m not sure about the exact term). After a ...
Dr. Chen Yiying Reply:
Hello: In response to your question... Based on your description, it is most likely a type of urticaria. In addition to avoiding triggering factors, antihistamines can generally be used to control the symptoms. However, please have a dermatologist confirm the diagnosis. Departmen...[Read More] Understanding Skin Issues: From Allergies to Rashes and Treatments
Identifying Food Allergies: Testing and Treatment Options Explained
Food allergy I experienced multiple areas of severe itching last week due to a food allergy, and I was diagnosed with urticaria at your hospital. I am now 90% healed. Since the rash was caused by food, but I do not know which specific food triggered it, can I undergo a blood test...
Dr. Chen Yiying Reply:
Hello: In response to your question... Generally speaking, allergens for urticaria are not easily tested through blood tests. Currently, allergen testing primarily focuses on asthma, allergic rhinitis, and atopic dermatitis, which have reference value. For food allergies related ...[Read More] Identifying Food Allergies: Testing and Treatment Options Explained