The best way for treating a second degree burn without scarring is by running cool water on burnt area for about 15 minutes, taking a pain reliever to ease the pain and then wrapping the burn area loosely with clean gauze to protect the skin. Look for signs of infection. If your second degree burn is major, consult a doctor who will advice you the best cream to use like Neosporin after your blister bursts. Read more details at http://www.wikihow.com/Treat-a-Burn.
Triple antibiotic cream. Chances are you won't get a scar. I did something stupid as a teen, I put a "frozen" roast into a pot of boiling oil and the grease splashed up. I had blisters on my face, chest and arms for almost 2 months and now,.... I have no signs of that day on my body and haven't since a long time ago.
I got burned in a motorcycle accident and the burn was treated with medicine and these bandages that are made for burns--they are wet and gel-like. You can get that kind of bandage at a pharmacy. BUT I would advise you to consult a doctor (or go to one of those medical clinics in the pharmacy) because burns have to be cleaned properly and treated properly so they do not get infected. Hope you heal soon.