Sodium nitrate, a preservative that's used in some processed meats, such as bacon, jerky and luncheon meats, could increase your heart disease risk. It's thought that sodium nitrate may damage your blood vessels, making your arteries more likely to harden and narrow, leading to heart disease.
For third degree burns, keep the burned area covered with a wet cloth as much as possible to keep more chemical from washing into the wound. Once the chemical has been washed away as much as possible, cover the burn area with a fresh, wet cloth, wrap your cat in a dry towel and take him to your veterinarian.
1 Dilute some vinegar with cold water, dip a soft cloth into the solution and apply it gently on the sunburn blisters. It will absorb the heat from the skin and relieve the burning sensation.  You can also spray vinegar directly on the affected area to ease the pain.