1. Check the damage degree: First, check the specific damage of the gauze to determine whether it is only partially damaged or whether the whole gauze needs to be replaced.

2, looking for repair methods: only part of the damage, you can try to use transparent thread and needle and thread to repair it slightly, pay attention to keep it clean and flat.

3. Replace the mesh: the damage is too serious to be repaired. You can consider replacing the whole mesh, and contact brands and professional repair shops for professional help.