Insect bites, Dermatology FAQ

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Recurrent Red Rashes on Limbs: Possible Causes and Insights

Recurrent rashes on the limbs? I have been experiencing recurrent red rashes on my limbs for the past two months. They are not painful or itchy and typically disappear within about a week. However, a few days after they fade, new rashes appear. I consulted a dermatologist who sug...


Dr. Wu Yuxin Reply:
Skin issues require a visual examination of the lesions for accurate diagnosis, so I cannot provide a definitive answer here. I recommend consulting a dermatologist for an in-person evaluation.

[Read More] Recurrent Red Rashes on Limbs: Possible Causes and Insights


Unexplained Redness and Swelling: Skin Issues Explained

Unexplained swelling and redness of the body? Hello, doctor. Last week, I developed a red bump on my finger that itches and hurts when scratched, resembling a mosquito bite, but the surface feels hard. After a week, the redness and swelling are still present, and it continues to ...


Dr. Wu Yuxin Reply:
Dermatological diagnoses require visual examination of the lesions or a detailed medical history, and cannot be adequately addressed through online consultations. It is recommended that you seek a nearby dermatologist for evaluation and treatment.

[Read More] Unexplained Redness and Swelling: Skin Issues Explained


Understanding Raised Bumps from Insect Bites and Friction: Treatment Options

Bumps caused by insect bites and friction? I previously consulted a dermatologist about a raised lesion, and now it seems to have grown larger, so I want to have it treated. I remember the doctor mentioning that it could be due to a mosquito bite or an injury, and that it became ...


Dr. Wu Yuxin Reply:
The correct diagnosis can only be determined after examining the lesion, which will allow for appropriate treatment recommendations.

[Read More] Understanding Raised Bumps from Insect Bites and Friction: Treatment Options


Understanding Raised Skin Bumps: Causes, Treatments, and Removal Options

Raised scar-like lesions I saw a dermatologist a long time ago, but I can't remember the name of the raised bump that developed due to friction. The bump on my calf is quite large, and I want to have it removed with laser treatment. Recently, I also noticed a small bump wher...


Dr. Li Yufen Reply:
Hello: Based solely on the textual description, it is not possible to accurately diagnose a skin condition. It is recommended to consult a nearby dermatologist for a confirmed diagnosis at http://www.derma.org.tw/user_finddoctor.php, and then determine the appropriate treatment m...

[Read More] Understanding Raised Skin Bumps: Causes, Treatments, and Removal Options


Understanding Cherry Angiomas: When to Seek Further Skin Evaluations

Inquiry about red spots on the skin? Hello, doctor. Recently, I took PEP (post-exposure prophylaxis) medication and noticed that my body started to develop many red spots, primarily on the area from my arms to my forearms. A month after completing the medication, I visited a derm...


Dr. Wu Yuxin Reply:
If it is confirmed to be a cherry angioma, no special treatment is necessary.

[Read More] Understanding Cherry Angiomas: When to Seek Further Skin Evaluations


Understanding Cherry Angiomas: When to Seek Further Skin Evaluation

Inquiry about red spots on the skin? Hello, Doctor. Recently, I took PEP (post-exposure prophylaxis) medication and noticed that my body started to develop many red spots, primarily on the area from my arms to my forearms. A month after completing the medication, I visited a derm...


Dr. Wu Yuxin Reply:
If it is confirmed to be a cherry angioma, no special treatment is necessary.

[Read More] Understanding Cherry Angiomas: When to Seek Further Skin Evaluation


Severe Allergic Reaction to Bug Bite: Why Is My Skin Itching?

The skin has a severe allergic reaction from an insect bite, and after applying the medication prescribed by the doctor, other areas nearby have started to itch? I was bitten by an insect on my calf, and due to a severe allergic reaction, it became swollen and started to ooze. I ...


Dr. Li Yufen Reply:
Hello: Based solely on the textual description, it is not possible to accurately diagnose a skin condition. The most common issue is likely a strong allergic reaction to insect bites, or there may be an allergy to the ingredients or base of the topical ointment. If itching is sev...

[Read More] Severe Allergic Reaction to Bug Bite: Why Is My Skin Itching?


Understanding Insect Bites: Symptoms and Treatment for Skin Issues

Insect bites? I would like to ask about my boyfriend, who is a soldier in Matsu. He suddenly discovered multiple bumps on his arms that resemble mosquito bites. Initially, they were not itchy, but after a day or two, they started to itch and have worsened without improvement. The...


Dr. Wu Yuxin Reply:
Without seeing any lesions, it is truly impossible to confirm.

[Read More] Understanding Insect Bites: Symptoms and Treatment for Skin Issues


Swelling on the Side of My Middle Finger: Causes and Solutions

Swelling on the lateral side of the fingertip of the middle finger? This morning, I woke up and noticed that the left side of the tip of my middle finger on the back of my hand is swollen. It doesn't itch or hurt. The swollen area doesn't appear very red. However, there...


Dr. Li Yufen Reply:
Hello: Based solely on the textual description, it is not possible to accurately diagnose a skin condition. When allergic reactions to insect bites are more severe, there may be noticeable redness, swelling, and itching. If your current skin condition has not improved or has wors...

[Read More] Swelling on the Side of My Middle Finger: Causes and Solutions


Should You See a Doctor for Persistent Mosquito Bite Reactions?

Mosquito bites Hello, doctor. I have a mosquito bite that is slightly purple and has some swelling and pain (it hurts when pressed). It has been two weeks and hasn't healed, but the skin surface looks normal (like a typical mosquito bite). Should I seek medical attention in ...


Dr. Wu Yuxin Reply:
For most insect bites, if they are not too severe, applying a standard insect bite ointment is sufficient.

[Read More] Should You See a Doctor for Persistent Mosquito Bite Reactions?


Understanding Mosquito Bites: When to Seek Dermatological Help

Mosquito bites Hello, doctor. Based on my previous experiences with insect bites, they usually heal within 2-3 days. However, last week, I was bitten by what I suspect was a mosquito while I was sleeping (I later swatted it). The mosquito was quite large, and the bite was located...


Dr. Wu Yuxin Reply:
Different species of mosquitoes and individual variations in body constitution can lead to different symptoms after a bite.

[Read More] Understanding Mosquito Bites: When to Seek Dermatological Help


Unexplained Itching: Is It Possible to Have Bites on One Leg Only?

Insect bites? Recently, I have been experiencing a recurring condition on my foot that resembles mosquito bites (but I am certain it is not from mosquitoes). The affected area is below the knee, primarily concentrated around the ankle and the top of the foot. When one area heals,...


Dr. Li Yufen Reply:
Hello: It is not possible to accurately diagnose skin diseases based solely on a textual description. For a detailed introduction to insect bites, you can refer to Dr. Lin Cheng-Hsien's article at https://www.dr-skin.com.tw/health/view/20. If the skin condition does not impr...

[Read More] Unexplained Itching: Is It Possible to Have Bites on One Leg Only?


Understanding Skin Rashes: Causes, Symptoms, and Treatments

Skin rash Three days ago, several red rashes appeared on the inner side of my right calf and the inner side of my left thigh. Some of them have blisters, and I initially thought it was caused by insect bites. Today, I noticed that the rashes are increasing in number, and they are...


Dr. Wu Yuxin Reply:
Online consultations cannot provide a diagnosis; it is recommended to consult a dermatologist for an accurate assessment.

[Read More] Understanding Skin Rashes: Causes, Symptoms, and Treatments


Safe Anti-Itch Creams for Individuals with Favism

Patients with G6PD deficiency can use anti-itch ointments? I have favism, and recently I've been experiencing itchy skin that initially felt like insect bites. The itchy areas then became swollen and gradually expanded. The doctor diagnosed it as urticaria and prescribed ant...


Dr. Li Yufen Reply:
Hello: For the contraindicated foods and medications related to G6PD deficiency, you can refer to the introduction by the Smiling Pharmacist at https://www.edh.tw/article/15111. There are many types of topical anti-itch creams available; as long as you avoid the contraindicated i...

[Read More] Safe Anti-Itch Creams for Individuals with Favism


Understanding Persistent Itchy Skin: When to Seek Dermatological Help

Itchy skin issues? Recently, my skin has been experiencing an unusual itchiness that gets worse with scratching. This issue is occurring on my limbs and back and has persisted for several days. There are no visible changes on the skin, but occasionally I can feel a single raised ...


Dr. Wu Yuxin Reply:
No lesions were observed, making it difficult to determine the issue. If you are very concerned, please seek medical attention promptly.

[Read More] Understanding Persistent Itchy Skin: When to Seek Dermatological Help


Understanding Insect Bites: Healing Challenges and Skin Reactions

Wound after an insect bite Hello, doctor. Recently, I was bitten by an insect (it seems to be a flea since I caught it). After the bite, I started experiencing redness, swelling, and itching. Subsequently, a small blister appeared in the center of the wound, which looked like it ...


Dr. Wu Yuxin Reply:
1. Because flea venom is highly toxic and bites are infrequent, the reaction tends to be stronger and may not easily subside. 2. This means it hasn't completely healed yet; I recommend continuing with ice packs and applying medication. 3. This is indeed an insect bite. 4. I ...

[Read More] Understanding Insect Bites: Healing Challenges and Skin Reactions


Itchy Red Bumps on Buttocks: Possible Causes and Solutions

Red itchy rash on the buttocks? Hello, doctor. Since last year, I have developed small raised red rashes on my buttocks, approximately 1 to 1.5 cm in size, which are round or oval and itchy. This year, I have had more occurrences, all located on my buttocks. A dermatologist said ...


Dr. Wu Yuxin Reply:
Without actually seeing the lesion, it is impossible to determine the issue. If it is very concerning, please seek medical attention as soon as possible. A proper evaluation is necessary to understand the problem and determine how to address it.

[Read More] Itchy Red Bumps on Buttocks: Possible Causes and Solutions


Understanding Itchy and Red Skin Reactions to Heat in Winter

When the body heats up, the skin becomes itchy/red? Hello Doctor: Since it has gotten colder this winter, my skin has become very itchy after my body heats up, with some areas turning red and even developing small bumps that resemble insect bites. The episodes occur during walkin...


Dr. Li Yufen Reply:
Hello: Based solely on the textual description, it is not possible to accurately diagnose a skin condition. It is suspected that it may resemble an outbreak of urticaria. If the skin condition does not improve or worsens, it is recommended to consult a nearby dermatologist for di...

[Read More] Understanding Itchy and Red Skin Reactions to Heat in Winter


Understanding Sudden Itchy Bumps: Causes and Treatments

Redness and swelling with elevation? You may suddenly experience intense itching on your hands, followed by the development of small red, raised welts, which can be as large as 1 cm or as small as 0.3 cm. The itching occurs only at the moment of swelling, and afterwards, it subsi...


Dr. Wu Yuxin Reply:
No lesions were observed, and it is not possible to determine the issue. If you are very concerned, please seek medical attention promptly.

[Read More] Understanding Sudden Itchy Bumps: Causes and Treatments


Understanding Skin Issues: Itchy Bumps and Mole Changes Explained

Skin issues Recently, my skin has been itchy every day, with the itchy areas varying; sometimes it's my legs, sometimes the tops of my feet, and sometimes my arms. When I scratch, it becomes very itchy, and I often notice raised bumps that resemble mosquito bites, although t...


Dr. Wu Yuxin Reply:
These issues can all be addressed by a dermatologist.

[Read More] Understanding Skin Issues: Itchy Bumps and Mole Changes Explained


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