UV radiation causes sunburn, which is an inflammatory burn reaction in the skin. Absorbing too much UV light damages cells, leading to redness, heat, and pain. Seeking immediate relief, people often turn to quick, accessible household remedies. The effectiveness and safety of one such popular remedy, applying yogurt to sunburnt skin, is a frequent question for those dealing with a burn.
Evaluating the Yogurt Remedy
Yogurt is generally not recommended as a primary treatment for sunburn due to risks associated with applying food products to damaged skin. Sunburnt skin is compromised, meaning its protective barrier is weakened and susceptible to outside contaminants. Applying non-sterile food like yogurt introduces the risk of bacterial contamination, which could lead to an infection.
The potential for irritation is another concern, as yogurt contains lactic acid, a type of alpha-hydroxy acid (AHA). While lactic acid can be hydrating for intact skin, its exfoliating properties can be counterproductive and stinging on inflamed tissue. Sugars in flavored yogurts can also provide a breeding ground for bacteria or cause further irritation.
Understanding the Temporary Cooling Effect
The popularity of the yogurt remedy stems from the immediate physical comfort it provides upon application. Cold yogurt, taken straight from the refrigerator, offers instant relief from the heat radiating off sunburnt skin. The thick, creamy consistency also coats the skin, which feels pleasant on the dry, tight surface of the burn.
This cooling effect is purely superficial and does not contribute to the repair of damaged cells. The belief that probiotics or lactic acid actively heal the burn is anecdotal. While probiotics may benefit consumption, there is no reliable evidence that topical application promotes healing.
Applying any acid, such as lactic acid, to an acute burn can increase sun sensitivity and cause further irritation to the compromised tissue. The temporary relief ends once the yogurt warms up, requiring it to be washed off and reapplied.
Medically Recommended Sunburn Relief
When addressing a sunburn, the goal is to reduce inflammation, cool the skin, and prevent dehydration. A proven first step is taking a cool bath or shower to lower the skin’s temperature, followed by gently patting the skin dry.
Applying a moisturizer containing pure aloe vera or soy can help soothe irritation and lock in moisture. Aloe vera is recognized for its anti-inflammatory properties that calm the burn.
To manage pain and internal inflammation, taking a non-steroidal anti-inflammatory drug (NSAID), such as ibuprofen, is recommended as soon as possible after the burn. These medications reduce the body’s inflammatory response, which causes redness and swelling.
Staying well-hydrated is important because sunburn draws fluid to the skin’s surface. Drinking extra water helps prevent dehydration and supports the body’s natural healing processes.