Damaged the back of my throat from over-zealous purging

I’m not going to keep this up long, but I was wondering if anyone has any advice on what to do about the sores in the back of my throat? I used a spoon to purge an all-white-bread binge and got a little rough (I’m sure we all know how well white bread comes up). It’s a little sore, but I can manage that. Just concerned about infection? If I gargle with salt water will that help? Would well diluted hydrogen peroxide help too, like what one would use for mouth ulcers?

https://imgur.com/a/o2t4dzE