The calligraphy works that have been mounted are pressed with writing creases because of poor storage. . How to make the crease lighter? ! ! ! ! ask

Boil with a little water, remember to move gently, not too much water. Observe carefully, and don't use water where there are strokes, otherwise the ink will disperse and the work will be in vain. Or you can blow it with a hair dryer. Or clip it with two pieces of glass. So you can be as inconspicuous as possible. Note: the action should be light and subtle. Hope to adopt and give the best.