No, heat is not good for sunburn. Heat, in any form, will worsen the symptoms of a sunburn.
Why Heat Aggravates Sunburn
Sunburn is essentially inflamed skin. Applying heat, whether through hot showers, baths, hot tubs, saunas, or heated pools, will further inflame the already irritated skin. This can increase pain, discomfort, and potentially lead to more damage. Several sources explicitly advise against using hot water on sunburned skin. (Source 1, Source 2, Source 3).
Instead of heat, cool water or cool compresses are recommended to soothe the inflamed skin and reduce pain. (Source 4, Source 5)
Here's a summary of why heat is harmful and what to do instead:
- Heat exacerbates inflammation: Sunburn is already inflamed; heat increases inflammation, causing more pain.
- Heat dries out the skin: Sunburned skin is often already dry; heat will further dry it out, worsening discomfort.
- Cool is better: Cool water or compresses help reduce inflammation and provide relief.
Appropriate treatments for sunburn include:
- Cool showers or baths (not cold).
- Cool compresses.
- Moisturizing lotions.
- Aloe vera.
- Pain relief medications (as needed and directed by a physician).