Putting ice directly on sunburned skin is not recommended. While cooling a sunburn does help with pain and inflammation, ice itself is too cold and can damage skin that’s already injured. The safer approach is cool water, whether from a shower, bath, or a damp washcloth applied to the burn.
Why Ice Can Make a Sunburn Worse
Sunburned skin is already damaged. A first-degree sunburn affects your skin’s outer layer, and a more severe second-degree sunburn reaches the deeper dermis, often producing blisters. Placing ice or a frozen gel pack directly against this compromised skin creates a second injury on top of the first.
When ice sits on skin, ice crystals can form inside the skin cells, slowing blood flow and cutting off oxygen to the tissue. This is essentially frostbite. It can happen surprisingly fast on bare skin, and the result is permanent damage to the skin and underlying tissue. People with diabetes or circulation problems are especially vulnerable. The numbness from ice also masks how much damage is accumulating, so you may not realize the tissue is being harmed until it’s too late.
Sunburned skin is inflamed and extra sensitive, which makes it less resilient to temperature extremes in either direction. Ice also causes blood vessels to constrict sharply, which reduces the blood flow your skin needs to begin repairing itself.
How Cooling Actually Helps
Cold therapy does have real benefits for burned skin. Research has shown that lowering skin temperature to around 10°C (50°F) suppresses a key inflammatory signal that otherwise floods damaged tissue. This reduction in inflammation allows skin cells to proliferate faster, speeding up recovery. The key is reaching a cool temperature, not a freezing one.
Cool water from a shower, bath, or tap-dampened towel hits this sweet spot. It pulls heat out of inflamed skin, reduces swelling, and eases the stinging sensation without risking further tissue damage. The American Academy of Dermatology recommends frequent cool baths or showers to relieve sunburn pain, and Mayo Clinic advises cooling the skin for about 10 minutes several times a day.
The Best Way to Cool a Sunburn
A cool (not cold) shower or bath is the simplest starting point. Let the water run over the burned areas without scrubbing or using harsh soap. If a shower isn’t practical, soak a clean washcloth in cool tap water, wring it out lightly, and drape it over the burn. Reapply as the cloth warms up, and aim for about 10 minutes per session, repeated several times throughout the day.
A colloidal oatmeal bath is another option that combines cooling with itch and irritation relief. You can find colloidal oatmeal packets at most pharmacies. Fill the tub with cool water, add the oatmeal, and soak for 10 to 15 minutes.
If you really want to use something from the freezer, wrap it in a towel or cloth first and limit contact to 10 minutes. Never place ice, frozen vegetables, or gel packs directly against sunburned skin.
What to Put on Skin After Cooling
Once you’ve cooled the burn, pat (don’t rub) your skin mostly dry and apply a gentle moisturizer while the skin is still slightly damp. Aloe vera gel is a popular choice. Calamine lotion can help with itching.
There are a few things to avoid. Petroleum jelly, alcohol-based creams, and topical anesthetics containing benzocaine or lidocaine can trap heat in the skin and sometimes cause allergic reactions, making the burn feel worse. Stick with simple, fragrance-free moisturizers or pure aloe.
First-Degree vs. Second-Degree Sunburn
Most sunburns are first-degree, meaning they affect only the outer layer of skin. These cause redness, warmth, and tenderness, and they typically heal on their own within a few days to a week with basic home care like cool compresses and moisturizer.
A second-degree sunburn goes deeper, damaging the dermis beneath the surface. The telltale sign is blistering. If your sunburn blisters, don’t pop them. They’re protecting the raw skin underneath. Second-degree sunburns can take weeks to heal and may need medical treatment, particularly if the blisters are widespread or you develop a fever, chills, nausea, or signs of dehydration. These systemic symptoms suggest your body is struggling with the extent of the damage and aren’t something to manage at home.