Ms. Song is particularly afraid of the cold. Before going to bed every night, she must hold a hot water bottle so that she can sleep peacefully. A few days ago, as usual, she threw the hot water bottle on the bed and got into bed. When she woke up the next day, she found a blister the size of a broad bean on her left calf. Initially, Ms. Song didn't take it seriously, but a day later the blisters became red and swollen, the doctor diagnosed that this was a low-temperature burn. although the burnt area is not large, the damage has reached the level of a second-degree burn, and it would take at least a month to go to the hospital for dressing changes.
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