Being scalded by oil belongs to high-temperature burns, which can cause degeneration and necrosis of skin and tissues, followed by an inflammatory reaction leading to the leakage of fluids and localized swelling. Additionally, in a high-temperature state, local blood vessels will dilate. This dilation can lead to congestion, and the increased pressure causes water to seep into the tissues, thus causing localized swelling. Therefore, after being scalded by oil, it is necessary to rinse with cold water for at least 30 minutes, or until the pain eases, to lower the local temperature, reduce pain and swelling, and alleviate symptoms. Furthermore, when necessary, disinfection and protection measures should be taken, and cold compresses can be applied to reduce swelling.