How Long Should You Apply Apple Cider Vinegar to Sunburn?

Apple cider vinegar (ACV) is a traditional home remedy used for mild sunburn. Its primary component is acetic acid, which gives ACV its acidic properties. Applying a diluted ACV solution may soothe the skin by reducing inflammation and providing a cooling sensation as the liquid evaporates. This remedy is intended only for very mild, first-degree sunburns involving simple redness and minor pain.

Proper Dilution and Application Methods

The highly acidic nature of undiluted ACV can cause significant irritation or chemical burns on already damaged skin, making proper dilution essential. A common and safe ratio for a localized compress is one part ACV to one part cool water. For a full-body remedy, incorporate about one cup of ACV into a cool bath.

To apply a compress, soak a clean cloth or gauze in the diluted solution, wring out the excess liquid, and gently place it over the affected area. Alternatively, a highly diluted mixture (one tablespoon of ACV mixed with one cup of distilled water) can be used in a clean spray bottle to mist the skin. Before application, the skin should be clean and free of oils or lotions, which could prevent the solution from making contact with the burn.

Recommended Application Duration and Frequency

The duration of a single application must be limited to prevent over-drying the skin or causing irritation. When using a compress, apply it for 10 to 15 minutes before removing it and allowing the skin to air dry. For a full-body bath soak, remain in the cool, ACV-infused water for no more than 15 to 20 minutes.

Frequency depends on the application method and the body’s reaction. A diluted spray may be gently misted onto the skin every few hours as needed for a cooling effect. Compresses should be limited to two or three applications daily to prevent excessive exposure to the mild acid. Discontinue ACV use entirely after the first two or three days, or immediately if the skin begins to peel or shows increased irritation.

Essential Safety Precautions and Warning Signs

ACV must not be applied to any areas of skin that are broken, blistered, or weeping fluid. The acetic acid can be painful and damaging to open wounds, potentially worsening the injury and increasing the risk of infection. Before applying the solution to a widespread area, perform a patch test on a small section of sunburned skin, waiting at least 15 minutes to check for adverse reactions.

Signs of a poor reaction include increased redness, an intensifying burning sensation, or an outbreak of hives or increased itching. If any localized reactions occur, stop using ACV immediately and rinse the area with clean water. Because ACV-treated skin may be temporarily more sensitive to light, strict sun avoidance is necessary during the healing process.

When to Abandon Home Remedies and Seek Care

ACV is only appropriate for minor, localized, first-degree sunburns. If the sunburn is accompanied by systemic symptoms, home treatment is insufficient, and professional medical attention is necessary. Severe signs include a high fever, the onset of chills, or persistent nausea and vomiting, which can indicate sun poisoning or severe dehydration.

A medical evaluation is warranted if large, widespread blisters, characteristic of a second-degree burn, are present. Seek care if there are signs of infection, such as increasing pain, severe swelling, the presence of pus, or red streaks extending from the burn. Any instance of confusion, disorientation, or fainting requires immediate medical intervention.