Hives: Causes, Symptoms, and Natural Remedies

Is it urticaria?

Hello, I discovered a rash on my body about a month ago, characterized by redness and itching.
It started as a small red spot, which then began to enlarge into a rash.
After scratching, the area expanded even more, and the itching became unbearable.
The episodes occur after 5 PM and last until midnight, but I have no issues upon waking up until the afternoon.
As a child, I was prone to allergies from seafood and eggs, but I haven't experienced any reactions since I was 12.
Currently, only my palms become red and itchy when I rub them (while doing laundry or making dumplings).
I have continuously kept pets since childhood.
My diet hasn't changed significantly, with the only alteration being that I started jogging every morning a month ago.
Why has this allergic reaction suddenly occurred? The affected areas are all at the junctions where my skin meets clothing (such as the back of my thighs, lower buttocks, back of my shoulders, the bends of my knees, and the tops of my feet).
This situation repeats itself daily, and I start to worry as soon as I finish work.
Accidentally breaking the skin has become a common occurrence.
If I don't want to rely on medication, what other methods can I use to resolve this?

Su Tai Tai, 30~39 year old female. Ask Date: 2003/08/30

Dr. Zhong Yitun reply Dermatology

The rash has persisted for a month, and the fact that it recurs daily is indeed concerning.
If the rash appears and disappears repeatedly, it is likely to be urticaria (hives).
If the rash is increasing in size and number, with some lesions remaining fixed and not fading, it could be indicative of an infection such as scabies.
To determine the exact cause, a medical examination is necessary.

If it is urticaria, it may have developed this way due to a previous cold or an underlying rheumatic condition, which often presents with symptoms like arthritis or facial redness after sun exposure.
Additionally, if allergens have not been completely avoided, that could also be a factor.
It is advisable to visit a hospital for a clearer diagnosis.
If one prefers not to rely on medication, the best approach is to eliminate allergens.
Allergic reactions can occur suddenly; in fact, the "allergic cells" in the blood have already "recognized" certain allergens.
When they "meet," a reaction occurs, but if these allergens are avoided, no reaction will happen.
Common food allergens include shellfish, tuna, mackerel, salmon, peanuts, fermented products like alcohol and stinky tofu, and meats containing nitrates such as sausages, ham, bacon, and hot dogs.
Additionally, bamboo shoots and dried bamboo shoots can also be problematic.
It would be wise to pay attention to these foods initially.

Reply Date: 2003/08/30

More Info

Hives, also known as urticaria, is a common skin condition characterized by raised, itchy welts that can appear anywhere on the body. Understanding the causes, symptoms, and potential natural remedies for hives can help manage this uncomfortable condition effectively.

Causes of Hives
Hives can be triggered by a variety of factors, including:
1. Allergic Reactions: Common allergens include foods (like seafood and eggs), medications, insect stings, and environmental factors such as pollen or pet dander. Given your history of allergies to seafood and eggs, it’s possible that a similar allergen could be responsible for your current symptoms.

2. Physical Triggers: Certain physical stimuli can provoke hives, including pressure (from tight clothing), temperature changes (heat or cold), and even exercise. You mentioned that your symptoms seem to appear after you start running, which could indicate that physical exertion is a trigger for you.

3. Stress: Emotional stress can also lead to the development of hives. The timing of your symptoms, occurring in the evening after a day of work, may suggest that stress could be a contributing factor.

4. Infections: Viral infections can sometimes trigger hives, particularly in children, but adults can also experience this.

5. Chronic Conditions: In some cases, hives can be a symptom of an underlying health issue, such as autoimmune diseases or thyroid problems.

Symptoms of Hives
The primary symptom of hives is the appearance of raised, itchy welts on the skin. These welts can vary in size and may appear in clusters. Other symptoms can include:
- Red or skin-colored welts that can change shape and size.

- Intense itching, which can lead to scratching and potential skin damage.

- Swelling, particularly in areas like the face, lips, or throat, which can be a sign of a more serious allergic reaction known as angioedema.

Natural Remedies for Hives
If you prefer to manage your hives without medication, there are several natural remedies you can consider:
1. Cold Compress: Applying a cold compress to the affected areas can help reduce itching and swelling. The cold can constrict blood vessels and reduce inflammation.

2. Oatmeal Baths: Soaking in a lukewarm bath with colloidal oatmeal can soothe irritated skin and relieve itching.

3. Aloe Vera: Known for its soothing properties, applying aloe vera gel to the affected areas can help calm the skin and reduce inflammation.

4. Herbal Remedies: Some herbs, such as chamomile and peppermint, may have anti-inflammatory properties. Drinking herbal teas or using topical applications can provide relief.

5. Dietary Adjustments: Keeping a food diary to track any potential triggers can help you identify and avoid foods that may cause hives. Since you have a history of allergies, it may be beneficial to avoid known allergens.

6. Stress Management: Techniques such as yoga, meditation, or deep-breathing exercises can help reduce stress, which may alleviate symptoms.

Conclusion
Given your symptoms and history, it would be wise to consult with a healthcare professional or an allergist to determine the exact cause of your hives. They may recommend allergy testing or other diagnostic measures to identify specific triggers. In the meantime, implementing some of the natural remedies mentioned above may provide relief. Remember to avoid scratching the affected areas to prevent further irritation or infection. If your symptoms worsen or if you experience swelling in your throat or difficulty breathing, seek medical attention immediately, as these could be signs of a severe allergic reaction.

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