I had a child that had these removed last year.
Yes, the sock thing is for ice packs.
My daughter didn’t get one from the oral surgeon but we got it on a “you might want to get this” list from them. Yeah, the day of her surgery..
By the time I could order it and get it in, she really didn’t need it..
Also, she would have killed me, if I videoed her. She actually threatened my life, if I did. I did get a few pictures of her but she was not even happy with those...
So, I totally don’t get the whole vlogging thing..
My daughter was also knocked completely out with hers. So, it took about a week to fully recover and 2 weeks for the bruising to completely go away... They cut them out, due to severe pain and ruining the spacing in her teeth...