Problem analysis: If there is no infection after sewing the needle, you don't need to change the dressing every day, just change the dressing and remove the stitches on the second, fourth and seventh day after sewing the needle. If there is infection, it is necessary to change the dressing every day and thoroughly remove the infected focus to facilitate wound healing.

Rehabilitation guidance: It is suggested to pay attention to hygiene, avoid infection and change medicine regularly.

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