A Week Ago, I Burned My Stomach With An Adhesive

A week ago, I burned my stomach with an adhesive heating pad. I read the instructions clearly and it did say it was to be applied to skin. I received second degree burns. The biggest blister popped last friday and it is beginning to scab over. The pink flesh is still visible. I have used an antibiotic spray and have also covered it with plasters. Clear liquid still comes out but not a lot. One of the other two blisters has popped but nothing has come out of it and it hasnt broken. The third remains intact. What am i supposed to do to reduce chances of scarring?