Pinching your nose will only deform your nose. Because the external force squeezes the bridge of the nose, it will make the bridge of the nose "concave" and become extremely ugly! Nowadays, many people, including many, many stars, will find their noses sunken, especially at the top of the bridge of the nose, because the brow bone at the top of the bridge of the nose is relatively fixed and easily stressed, and the shape of the depression is similar to that of fingers, because it is pinched with fingers.
The nose is a very important organ. A sunken nose gives people an image of shrinking, weakness and being bullied. Moreover, after pinching a complete nose, the skin on the face will relax and the wrinkles on the face will increase. It is almost impossible to make your nose convex and full again.