Hi My Name Is Indya, I Am 14 Years Old.

Hi my name is Indya, I am 14 years old. For the past week I have been using Listerine Total Care Mouthwash and I have been using it for the longest and now for the past 2 days it has been irritating my mouth. I thought it was cleaning it at first, then that's when the burning sensation started to come in. My family said that I might be allergic to something in it, but I don't know completely just yet. I stopped using it but it was still burning my mouth. Now it is hard to drink or eat things because it makes it irritated more and more. My grandmom told me to swish my mouth with Hydrogen Peroxide but I think it is making it worse. Right now my lower part of my mouth looks red and a little blueish because it is sore. By me using the Peroxide it has made some parts of my lower lip look white over top of the red and blueish parts of my mouth. I would like to know what I can do to make this stop and go away.

Thank You,
Indya P.