Can no longer be

If the wallpaper was pasted inaccurately and went wrinkles, then, unfortunately, this can no longer be fixed in any way. But the formed bubble can be carefully glued, so much so that no one will guess that he was there. To do this, you need a regular medical syringe with a needle: you need to type a little wallpaper glue into it, pierce the bubble, inject the glue there and smooth out with a clean rag. The main thing is not to overdo it with glue, otherwise everything will look ugly.