Help me and I'll see if I can help you?

I went to the docs today and was diagnosed with a sinus infection. Usually, these types of things don't bother me but this one comes with post-nasal drip which gives me that irritating lump-in-throat sensation. That's what bothers me the most, because it causes nausea. The doc said my nasal pages were really swollen and should be at the very least dime sized but they were smaller than that. The normal size of a nasal opening is quarter sized apparently. I also don't eat very much because of it. Normally, I love to eat but now it's becoming a chore for me. I have no appetite. I take gummy vitamins everyday for adults. I drink plenty of water and stay away from junk and dairy as best as I can. I took someone's advice tonight and drank some hot lemon tea with added honey. Now, the sensation is coming back. I gargled with salt water and that definitely didn't work. Now, what else can I do? Natural remedies please. I'm also getting my tonsils removed August 18. Does this mean I have to have adenoids/turbinates removed as well? Someone help me out here. I never had such discomfort before.