I asked because I couldn't breathe even after removing the cotton packing. They said there was some soluble cotton inside and that it would melt in about a week. But no matter how much I searched, I couldn't find anyone who said they used cotton that melts, and I wonder if it actually melts. It's been almost a week and I can't breathe through my nose, so it's so frustrating that I feel like I'm going crazy. If anyone has used cotton that melts, please let me know if it really melts and when it will come off. ㅠㅠ