If you burn your skin, treating it with butter is considered a quick home remedy. But spreading butter on a wound is unsafe because butter melts from the body heat and creates a risk of infection. Toothpaste on burns is also considered a common remedy, but it also offers little benefit and some risk.
Both remedies could be more painful than the recommended first-aid of immediately placing the affected skin under cool, running water for several minutes. For mild to moderate first-degree burns, doctors also recommend over-the-counter antibiotic burn ointment. Gently apply the ointment and keep the area clean and covered for protection. If a burn is larger than three inches in diameter, and there is persistent pain and increasing redness around the wound, then a trip to a nearby urgent care center or hospital ER is recommended.