So I Was About To Take A Bath, But There

So I was about to take a bath, but there was no hot water so my aunt heated up the water in a pan. I didn't know that I had to mix it with cold water and I put the hot water right on my foot. It burned then the skin turned black and huge blisters formed on top. The doctor said it was normal they will pop and go away by themselves. He gave me silver nitrate gel and I put it on and it made a layer or on my wound. But what am I supposed to do about this?