@turquoise-- For simple, non-serious burns like sun burns, you can use home remedies like plain yogurt and honey.
But second and third degree burns can be dangerous and those need severe burn treatment with special bandages and creams to promote healing and prevent infections.
For example, I had a second degree oil burn last month. I was treated at the hospital with ionized silver bandages. They gave me extra bandages and I changed it everyday at home. Surprisingly, my burn healed in no time and didn't get infected.