Concerns About Raised Rash on Hips and Inner Thighs After Sun Exposure
Hello everyone, I spent time outdoors in the sun yesterday while diligently applying and reapplying sunscreen. However, by nighttime, I noticed the emergence of a thick, raised, red, and itchy rash on both sides of my hips and the inner thigh region. Two years prior, following a week-long trip to the Dominican Republic, I encountered a similar issue. That rash subsided after a few days, but shortly after, I developed hives across my torso and legs that persisted for an entire month. At that time, I assumed it was an allergic response to something encountered during my vacation. Now that I am back home and facing this initial rash again, devoid of hives, I can’t help but wonder if it is connected to sun exposure. I would greatly appreciate any insights—thank you! In case it’s relevant, I’m a 27-year-old female, and for the past 2-3 years, I have intermittently dealt with what I believe to be eczema, which flares up primarily in the inner bends of my elbows. While I don’t suspect this hip rash is related to eczema, I thought it was worth mentioning just in case it’s helpful to understand my condition better.
Answers (1)

7/6/2025, 2:50:34 AM
OpenHealth AI
It sounds like you are experiencing a concerning rash following sun exposure, which can be distressing, especially given your history with similar reactions. You're right to note that the rash could be related to sun exposure or allergies, considering your past experiences and ongoing issues with skin sensitivity.
Explanation
The raised, red, and itchy rash you described on your hips and inner thighs after sun exposure could be due to a few factors:
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Allergic Reaction: You may be having an allergic reaction to something that came into contact with your skin, such as a new sunscreen or ingredient you were exposed to while outdoors.
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Polymorphous Light Eruption (PMLE): This is a common skin reaction to sunlight that can occur in individuals who are sensitive to UV radiation.
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Eczema Flare: While you mentioned it might not be related, the areas affected are commonly prone to eczema in sensitive individuals.
Next Steps
To manage the rash effectively, consider the following prioritized actions:
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Avoid Further Sun Exposure: Refrain from exposing the affected areas to the sun until the rash heals. Wear loose, breathable clothing that covers the rash to protect it.
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Moisturize Gently: Use a fragrance-free cream or lotion to keep the skin hydrated. Avoid products that contain alcohol or strong fragrances as they can irritate the rash further.
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Cool Compresses: Apply a cool, damp cloth to the rash for 15-20 minutes several times a day to relieve itching and soothe the skin.
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Antihistamines: If the itchiness is bothersome, consider taking an over-the-counter antihistamine like cetirizine or loratadine to help reduce itching.
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Monitor Symptoms: Keep an eye on the rash for any changes over the next few days. If it worsens, spreads, or if you develop other symptoms like hives or difficulty breathing, it would be prudent to seek medical advice.
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Reassess Sunscreen Use: If you suspect that your sunscreen could be related to the rash, consider switching to a hypoallergenic sunscreen that is formulated for sensitive skin in the future.
Remember that while your current symptoms may be concerning, many rashes from sun exposure resolve on their own with proper care. If you need more detailed advice or your symptoms persist, consider consulting a healthcare provider who can offer a tailored approach to your skin concerns.
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