Skin or Nerve Issues? Your Itchy Symptoms After Sun Exposure

Q: Skin or Nerve Issues? Your Itchy Symptoms After Sun Exposure

Hello： You mentioned the sensation of itching on the skin, which may be related to stimulation of the nerve endings. <br>If there is numbness, it could indicate nerve compression. <br>In the case of itchy scalp, conditions like herpes zoster, which involve abnormal sensory nerve

Skin or neurological issues?

Two weeks ago, I worked on the rooftop and was exposed to the sun for six hours.
That night, my skin started to itch, and it was so severe that I couldn't sleep.
I went to a dermatology clinic, and they diagnosed me with a UV allergy.
After taking medication for three days, I no longer experience itching at night, but during the day, my scalp and face still itch, and my feet feel prickly and itchy.
Yesterday, I went to the clinic again and saw another doctor.
The doctor said that my skin looked normal without any rashes and advised me to see a neurologist.
I'm a bit puzzled because the itching symptoms initially appeared after sun exposure, and now the skin feels prickly and itchy without any numbness.
Could you please advise me on what might be the issue and which specialty I should consult next? Thank you.

Niming, 30~39 year old female. Ask Date: 2019/06/27

Dr. Jiang Junyi reply Neurology

Hello: You mentioned the sensation of itching on the skin, which may be related to stimulation of the nerve endings.
If there is numbness, it could indicate nerve compression.
In the case of itchy scalp, conditions like herpes zoster, which involve abnormal sensory nerve responses, should be considered.
As for the tingling in the soles of your feet, it seems more indicative of lumbar or sacral nerve root compression.
I recommend visiting a neurology clinic for evaluation (such as nerve conduction studies and electromyography) and treatment.
The physician will prescribe medication based on your condition and may suggest rehabilitation therapy.
Wishing you good health, peace, and joy.
Dr.
Jiang from the Department of Neurology cares about you.

Reply Date: 2019/06/27

More Info

It sounds like you are experiencing a complex situation involving skin irritation and itchiness following prolonged sun exposure. Based on the information you've provided, it seems that your symptoms could be attributed to a combination of factors, including a possible allergic reaction to UV exposure, as well as potential nerve-related issues.

Understanding Your Symptoms
1. UV Exposure and Allergic Reactions: After spending six hours in the sun, it's not uncommon for individuals to experience symptoms like itching or a burning sensation on the skin. This can be due to a condition known as polymorphous light eruption (PMLE), which is a type of photosensitivity reaction. Symptoms often include redness, itching, and sometimes small bumps or blisters. The fact that you initially experienced intense itching at night suggests that your skin was reacting to the UV exposure.

2. Post-Inflammatory Itch: Even after the initial allergic reaction has subsided, you may still experience itchiness due to post-inflammatory hyperreactivity. This is a condition where the skin remains sensitive and reactive even after the initial cause (in this case, UV exposure) has been resolved.
3. Nerve Involvement: The second doctor’s suggestion to consult a neurologist may stem from the possibility that your symptoms could also be related to nerve irritation or neuropathy. Itching can sometimes be a symptom of nerve-related issues, especially if it is not accompanied by visible skin changes. Conditions like neuropathic itch can occur when nerve fibers are irritated or damaged, leading to sensations of itching without a clear dermatological cause.

Next Steps
Given your symptoms, here are some recommendations for your next steps:
1. Consult a Dermatologist: Since your symptoms began with sun exposure and you have experienced significant itching, it would be prudent to revisit a dermatologist. They can perform a thorough examination and may recommend patch testing to rule out any allergic reactions to products or environmental factors.

2. Consider a Neurologist: If the dermatologist rules out skin-related issues, then seeing a neurologist could be beneficial. They can assess for any underlying nerve conditions that might be contributing to your symptoms.

3. Symptom Management: In the meantime, consider using soothing lotions or creams that contain ingredients like calamine, aloe vera, or hydrocortisone to help alleviate itching. Oral antihistamines may also provide relief from itching, especially at night.

4. Sun Protection: Moving forward, it’s crucial to protect your skin from further UV exposure. Use a broad-spectrum sunscreen with an SPF of at least 30, wear protective clothing, and seek shade whenever possible.

5. Hydration and Moisturization: Keeping your skin well-hydrated can help reduce irritation. Use a gentle, fragrance-free moisturizer regularly to maintain skin barrier function.

Conclusion
In summary, your symptoms could be a result of both an allergic reaction to UV exposure and potential nerve-related issues. It’s essential to follow up with a dermatologist for skin-related concerns and consider a neurologist if symptoms persist without a clear dermatological cause. Taking proactive steps to protect your skin and manage your symptoms will be key in your recovery. Always listen to your body and seek medical advice when symptoms persist or worsen.

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