I am going to jump on the soda water bandwagon. It worked wonders for me. I first used it to swish the gunk away and then gargled with it, finishing off by drinking some of it down. I used the small bottles to keep it from going flat on me.
As for the "sunburn", I tried Aquaphor and a few other things that did nothing at all. Finally I started using Walgreen's Maximum Strength Hydrocortisone cream with Aloe. It worked fantasticly.
It is all uphill now so keep that chin up!
Bill