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What actually helps a mild sunburn
Get out of the sun, take cool showers, apply a soothing moisturiser while skin is damp, drink extra water, and consider ibuprofen or aspirin if appropriate for you. A cool, fragrance-free gel fits into the "soothing moisturiser" step.
What dermatologists recommend
The American Academy of Dermatology's sunburn advice includes:
- Frequent cool baths or showers, then gently pat dry.
- A moisturiser containing aloe vera or soy, applied while skin is still damp.
- Aspirin or ibuprofen to reduce swelling and discomfort, if suitable for you.
- Drinking extra water.
- Leaving blisters intact.
Note that their advice names aloe vera, not cactus specifically. There is no research we know of testing prickly pear gel on human sunburn. A cooling, fragrance-free cactus gel can still feel pleasant in the same way.
How to use cactus gel after sun
- Cool the skin first with a shower or damp cloth.
- Apply a generous, gentle layer of refrigerated, fragrance-free gel.
- Reapply when skin feels hot or tight.
- Wear loose clothing and stay out of the sun while it heals.
Avoid
- Gels with alcohol, fragrance, menthol or lidocaine/benzocaine if you are sensitive; some numbing agents can irritate.
- Heavy oils or butters on fresh burns, which can trap heat.
Seek medical help for blistering over a large area, fever, chills, headache, confusion, nausea, or a sunburn on a baby.
Prevention beats any gel
Shade, sun-protective clothing, a wide-brimmed hat, UV sunglasses and broad-spectrum, water-resistant sunscreen SPF 30+ are what actually protect your skin.
Frequently asked questions
Is cactus gel or aloe better for sunburn?
Aloe vera has more research, and the American Academy of Dermatology suggests a moisturiser containing aloe vera or soy for sunburned skin. A plain, fragrance-free cactus gel may also feel soothing.
Should I put cactus gel on blisters?
No. Blistering means a more serious (second-degree) burn. Don't pop blisters; keep them clean and protected, and seek medical advice for large areas.
Does cactus gel have SPF?
No. Cactus gel provides no meaningful sun protection. Use broad-spectrum sunscreen SPF 30 or higher.
Sources
- How to treat sunburn (American Academy of Dermatology)
- Shade, clothing and sunscreen (American Academy of Dermatology)
- Aloe vera: usefulness and safety (NCCIH)
Medical note: this article is general information, not medical advice. For a rash, burn, wound, infection or any skin condition that worries you, talk to a doctor, pharmacist or dermatologist. Read our disclaimer.
