Unflavoured, non-sterilised buttermilk helps soothe sunburns due to its cool temperature, protein content, and lactic acid, which provide relief through cooling, gentle moisture, and reduced heat.How It WorksCooling relief: The low temperature of chilled buttermilk instantly brings down skin heat.Protein and fat film: Dairy proteins help coat the skin, locking in basic moisture.Lactic acid: This mild acid aids comfort by calming outer irritation, though it should be used gently on raw skin.How to Apply a Buttermilk CompressChill the liquid: Keep unflavoured buttermilk in the refrigerator until cold, but not frozen.Soak a cloth: Dip a clean cloth, gauze, or soft kitchen towel into the cold buttermilk.Wring gently: Squeeze out excess liquid so the cloth is wet and heavy, but not dripping.Apply to skin: Place the cool wrap directly on the sunburned area for 10 to 15 minutes.Rinse off: Gently wash the area with cool or lukewarm water afterward to avoid sour dairy odors or bacteria buildup.