My 1.5 yr old son kept his thumb finger inside hot boiled egg and he got his finger burnt. Immediately I kept his finger in water for few minutes and then applied coconut oil later moisturizer. Then took him to pediatrician and got silverex ointment. His finger got a blister. My neighbours say I should have applied toothpaste immediately and did a mistake keeping finger in water. Am confused whether keeping burnt finger in water is a mistake or not. And should I leave the blister open uncovered or should it be covered with a sterile bandaid. Pls anybody with proper knowledge let me know. Thanks