Can a lawyer not be used in the second trial?

You don't need a lawyer for the second trial. Whether to hire a lawyer is up to the parties themselves. If the parties can express themselves clearly and are familiar with relevant laws and regulations, they can defend themselves. The procedure of second instance is generally concluded within three months from the date of filing the case of second instance.

legal ground

Article 174th of the Civil Procedure Law of People's Republic of China (PRC)

In handling appeals, the people's court of second instance shall apply the ordinary procedure of first instance, except in accordance with the provisions of this chapter.

Article 175

The judgment and ruling of the people's court of second instance are final.

Article 176

The people's court shall conclude an appeal case against the judgment within three months from the date of filing the case in the second instance. If there are special circumstances that need to be extended, it should be approved by the president of our hospital. When the people's court hears an appeal case against the ruling, it shall make a final ruling within 30 days from the date of filing the case of second instance.