Itchy and Painful Skin Symptoms: Causes and Tests - Dermatology

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The symptoms of itching and pain in the skin, which typically occur during hot weather and can also be triggered by emotional states (such as extreme happiness or anxiety), particularly affecting the back of the hands and feet, could be due to several reasons.
Possible causes include heat rash, allergic reactions, or conditions like eczema or urticaria (hives).

Blood tests may help identify underlying issues such as allergies, infections, or autoimmune conditions, but they may not always pinpoint the exact cause of skin symptoms.
It is advisable to consult a healthcare professional for a thorough evaluation and appropriate testing.

Xiansheng, 10~19 year old female. Ask Date: 2009/04/23

Dr. Jiang Yujiao reply Dermatology


Hello: During hot weather, the skin may experience symptoms of itching and pain, and similar sensations can occur during emotional changes.
I believe this is an allergic reaction, which is a type of constitutional response.
Generally, blood tests cannot identify the cause.
Antihistamines can be taken, and it is advisable to relax and avoid situations that may cause the body to heat up (such as wearing breathable clothing and avoiding excessively hot or spicy foods).

Reply Date: 2009/04/23

More Info


Itchy and painful skin symptoms can be quite distressing and may arise from a variety of causes. Based on the information provided, it seems that your symptoms are exacerbated by heat and emotional states, such as excitement or anxiety. This suggests that your skin reactions may be linked to a combination of environmental factors and psychological triggers.

One possible explanation for your symptoms is a condition known as cholinergic urticaria, which is a type of hives that can occur in response to heat, sweating, or emotional stress. In this condition, small, itchy welts appear on the skin when the body temperature rises. The skin may also feel painful or sensitive to touch. This is often due to the release of histamines in response to triggers, leading to inflammation and irritation.

Another potential cause could be nervous system sensitivity or neuropathic pain, where the nerves become overly sensitive and react to stimuli that would not normally cause discomfort. This can be particularly relevant if you have a history of stress or anxiety, as emotional states can significantly impact how the nervous system processes sensory information.

In terms of testing, while blood tests can provide valuable information about your overall health, they may not directly identify the cause of your skin symptoms. Blood tests can check for allergies, autoimmune conditions, or infections, but they may not reveal the specific triggers for conditions like cholinergic urticaria or neuropathic pain. A skin prick test or patch test might be more useful if an allergic reaction is suspected.

To manage your symptoms, consider the following strategies:
1. Avoid Triggers: Try to identify and avoid situations that lead to increased body temperature or emotional stress. This may include wearing breathable clothing, staying in cool environments, and practicing relaxation techniques.

2. Antihistamines: Over-the-counter antihistamines can help alleviate itching and reduce the severity of hives. Consult with a healthcare provider for recommendations on which medications may be best for you.

3. Moisturizers: Keeping your skin well-hydrated can help reduce irritation. Look for fragrance-free and hypoallergenic moisturizers.

4. Stress Management: Since emotional states can exacerbate your symptoms, incorporating stress-reduction techniques such as mindfulness, yoga, or deep-breathing exercises may be beneficial.

5. Consult a Specialist: If symptoms persist or worsen, it may be helpful to consult a dermatologist or an allergist. They can provide a more thorough evaluation and may recommend specific tests or treatments tailored to your condition.

In summary, itchy and painful skin symptoms can arise from various causes, including heat sensitivity and emotional stress. While blood tests may not directly identify the issue, a combination of avoidance strategies, medication, and professional consultation can help manage your symptoms effectively. Always consult with a healthcare professional for personalized advice and treatment options.

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