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Sunburn appears as red, warm, tender skin on exposed areas and may blister. Heat rash (prickly heat) shows as tiny red bumps in folds and covered areas where sweat gets trapped. Treatment differs — cooling for heat rash, soothing and protecting for sunburn.
⚠️ Caution:Babies under 6 months should be kept out of direct sunlight. If sunburn causes blistering, fever, or extreme fussiness, see a doctor. For heat rash, if bumps fill with pus or baby develops fever, it may be infected — seek medical help.
Seeing any rash on baby's delicate skin causes instant worry. Parents often can't tell if it's something serious. Moms say both sunburn and heat rash are common and manageable — knowing the difference helps you treat it at home confidently, and both clear up quickly with the right care.
Here's what moms in our community shared based on their own experience.
Sunburn is usually on exposed areas — face, arms, legs. Heat rash is in skin folds — neck, diaper area, underarms. That's the easiest way to tell.
For heat rash, give a cool bath and let baby air-dry. Dress in loose cotton clothes. Calamine lotion helps with the itch.
Baby skin is super sensitive to sun. Even 15 minutes of direct sun can cause burns. Use a physical sunscreen (zinc-based) after 6 months.
Our pediatrician said heat rash is harmless and goes away on its own if you cool the skin. Sunburn needs more attention — aloe vera gel and keeping out of sun.
The information shared on this page comes from real experiences of mothers in our community. While we strive to provide helpful insights, this content is for informational purposes only and should not be considered medical advice. Always consult with your pediatrician, healthcare provider, or other qualified medical professional for any questions regarding your child's health or development.
Last reviewed: March 20, 2026
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