Skin Allergies: Causes, Symptoms, and Treatment Options - Dermatology

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Skin allergy


Doctor: Hello, I have been experiencing hives every morning within half an hour of waking up for the past two months, with the affected areas varying.
However, they usually improve within 1-2 hours.
As the condition has persisted, I noticed generalized swelling, tightness in my fists, and swollen lips last week, which made me realize the seriousness of the situation and I rushed to seek medical attention.
I mentioned that I experience allergic symptoms in my nose during seasonal changes, but they are not severe, and I have no specific allergic reactions to food.
What could be the cause of this condition? Should I get a blood test? The doctor only prescribed medication and administered an injection (Dexamethasone, Homoclomin, Simagal), providing a three-day supply of medication.
I only took it for one day because it made me feel very drowsy and fatigued.
Everything was fine for five days, but on the sixth day, I developed a mild rash again.
I would like to ask Dr.
Zheng if I should continue taking the medication? Is this medication a specific treatment?

jane, 30~39 year old female. Ask Date: 2001/09/25

Dr. Zheng Lizhen reply Dermatology


There are many causes of urticaria, including food, medications, emotional stress, vibrations, and temperature changes, among others.
You may need to take medication for a period of time to control the symptoms.
Drowsiness is a common side effect of antihistamines, but there are now newer generation antihistamines available that do not cause drowsiness; you can ask your physician for this type of new antihistamine.
Additionally, reducing the intake of foods containing colorings, preservatives, and other food additives may help improve the condition of urticaria.
Please visit a dermatologist for diagnosis and treatment.

Reply Date: 2001/09/25

More Info


Skin allergies can be a complex issue, often presenting with a variety of symptoms and triggers. Understanding the underlying causes, symptoms, and treatment options is essential for effective management.

Causes of Skin Allergies
Skin allergies can arise from numerous factors, including environmental allergens (like pollen, dust mites, and pet dander), food allergies, and contact with irritants (such as soaps, detergents, or certain fabrics). In your case, the occurrence of urticaria (hives) shortly after waking up may suggest an allergic reaction, possibly linked to something in your sleeping environment, such as bedding materials or even temperature changes during the night.
Additionally, the swelling and tightness you experienced, along with lip swelling, could indicate a more severe allergic reaction, potentially anaphylaxis, which requires immediate medical attention. Seasonal changes can also exacerbate allergic reactions, as pollen counts fluctuate, and your immune system may react more vigorously during these times.


Symptoms of Skin Allergies
Common symptoms of skin allergies include:
- Hives (Urticaria): Raised, itchy welts that can appear anywhere on the body.

- Eczema: Red, inflamed patches of skin that may be itchy and dry.

- Angioedema: Swelling beneath the skin, often around the eyes and lips.

- Contact Dermatitis: Red, itchy rash caused by direct contact with an allergen or irritant.

In your situation, the transient nature of your hives (resolving within 1-2 hours) suggests a possible acute allergic reaction rather than a chronic condition. However, the recurrence of symptoms after a period of relief indicates that the underlying cause has not been fully addressed.


Treatment Options
The treatment for skin allergies typically involves:
1. Avoidance of Triggers: Identifying and avoiding known allergens is crucial. Keeping a diary of your symptoms and potential triggers can help pinpoint what might be causing your reactions.

2. Medications: Antihistamines are commonly prescribed to alleviate itching and reduce hives. In your case, the doctor prescribed Dexamethasone, a corticosteroid that can help reduce inflammation and manage severe allergic reactions. While effective, corticosteroids can have side effects, including drowsiness, which you experienced.
3. Follow-Up Care: Since you experienced a recurrence of symptoms after stopping the medication, it’s important to consult your healthcare provider. They may recommend continuing the medication or adjusting the dosage. Blood tests or allergy tests may also be warranted to identify specific allergens.

4. Emergency Action Plan: Given the severity of your symptoms, it may be wise to have an emergency plan in place, including carrying an epinephrine auto-injector if your doctor deems it necessary.


Conclusion
In summary, skin allergies can be multifaceted, and their management often requires a tailored approach. It’s essential to maintain open communication with your healthcare provider, especially if symptoms persist or worsen. Continuing your medication as prescribed, while monitoring your symptoms, is crucial. If you experience any new or worsening symptoms, seek medical attention promptly. Remember, understanding your body’s reactions and working closely with your healthcare provider can lead to effective management of your skin allergies.

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