This cleared up my check bite in 1 day

So I was chewing my food and accidentally bite my lower lip. Thought nothing of it other than it hurt. But the next day the bite was swollen and painful for anything to touch it. So I went 3 more days in pain now. It was turning white and so I did some research because orgel and swishing with salt water was not helping it what so ever. I bought "kanka" which is a liquid drop you place over it and it knumbs and is suppose to freeze the area from pain and food touching it. But after 2 more days of using it wasn't helping either. So I stopped at my local Walgreens and found this canker cover patch. It's suppose to give relive up to 12 hours, stays on while you eat and protects while healing! Yay!!! Just what I am needing going on day 7. I got home and opened the package. It looked like a small pill and I have to place it directly on the canker sore. It then burns for a few secs. But it starts turning into a hard protectent gel which stays in place.
It healed my sore in 2 days.
Cons: it's bulky and if u have to place it in the front of ur mouth it's hard to talk. So I recommend placing it at night like I did and let it work it's magic then. It is pricey but it is a miracle when u are needing quick pain relief like I did. Would recommend to anyone who has gone a few days and nothing helps. This will do the job.