In this case, the method is to use red ink pen and double horizontal lines, and indicate the date of revision in the lower right corner of the signature.

In order to ensure the accuracy and completeness of medical records, doctors or nurses will use red ink pens to correct typos. Using double dashes to emphasize that this error has been noticed and corrected can also avoid misunderstanding or confusion.

The date of modification is indicated in the lower right corner of the signature, and the modification time is recorded, which is convenient for follow-up management. This practice is also in line with the norms and standards of the medical industry.