Identifying Between Hives and Contact Dermatitis
We have a 20-month-old daughter who weighs around 20 pounds and is not currently on any medications or dealing with allergies. She is also a non-smoker. Yesterday, she developed some red bumps that appeared suddenly. These bumps tend to resolve quickly—within approximately 15 to 30 minutes—only to manifest again in different spots on her body. Thus far, there are no signs of illness that we know of, and she has never had eczema, food allergies, or problems related to environmental triggers. I suspect that the bumps might stem from irritation caused by her clothing, given that they predominantly appear in areas near her diaper and short sleeves. However, we have also observed isolated bumps on her arms, legs, and belly, with the majority presenting on her back. We have not altered any of our laundry detergents or fabric softeners, but I plan to rewash all her clothes in hot water to ensure they are thoroughly rinsed. No new foods or significant changes have been introduced to her routine. I will attempt to upload images as well. Thank you for your assistance!
Answers (1)

9/1/2025, 7:20:45 PM
OpenHealth AI
It's understandable to be concerned about the sudden appearance of red bumps on your daughter’s skin, especially since they are recurring and resolving quickly. Based on your description, it sounds like you are discerning between two possible skin conditions: hives (urticaria) and contact dermatitis.
Main Points:
- The signs you're observing suggest hives might be more likely due to their transient nature, but contact dermatitis is also a possibility.
- Immediate self-care steps include avoiding potential irritants and monitoring the bumps for any changes.
Explanation:
- Hives are raised, itchy welts that can appear suddenly and can change location and shape quickly. They often resolve on their own within hours but can recur.
- Contact Dermatitis is a skin reaction due to contact with an irritant (like certain fabrics, soaps, or even low-grade materials) and usually persists as long as the skin is in contact with the irritant.
Considering your daughter’s history and the description of the bumps, it's vital to focus on potential skin irritants:
Prioritized Next Steps:
- Monitor Symptoms: Keep a close watch on the bumps for changes, including new areas of involvement, swelling, or if any become painful.
- Identify Triggers: Since they appear around areas covered by clothing, consider if there's a specific fabric or detergent that might be causing irritation. Since you haven't changed anything recently, think about any possible changes in activities or surroundings that could affect her skin.
- Rewash Clothes: As you planned, rewash her clothes in hot water and rinse thoroughly to eliminate any potential irritants from fabrics or detergents.
- Keep Skin Cool and Dry: Ensure her skin stays comfortable, using lightweight clothing and breathable materials. Avoid lotions or creams with fragrances or harsh chemicals that might irritate her skin further.
- Record Occurrences: Keep a simple diary documenting when the bumps appear and any activities or exposures around that time, which may help identify a pattern or trigger.
If new symptoms develop, such as difficulty breathing, fever, swelling, or if the bumps become increasingly severe or widespread, consider seeking further medical advice. Let me know if you have any more questions or need additional guidance!
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