2. Use touch-up paint: If the calligraphy scroll is seriously worn, you can consider repainting it. First, gently polish the worn place with sandpaper, and then repair and polish it with appropriate pigments and paints to make the scroll look as good as before.
3. Seek professional help: If it is difficult to repair or you are not sure how to operate, you can consult a professional calligraphy restorer or repairman for advice and help. They have the experience and technology to repair and maintain calligraphy scrolls.