Why can't I smell anything?

Ok, this is going to sound a little gross, so i apologize in advance. Last night I threw up after gagging on a large vitamin pill. It came out of my nose mostly and made me very congested. I have been blowing my nose constantly and my nostrils have a burning feeling. I took a hot shower a few minutes ago and it helped clear my congestion a lot. I still have some and the burning feeling. I suppose that's all normal considering what happened but I can't smell a thing. I couldn't smell the soap in the shower and I can't even smell vicks (which is strong). Why is this happening even though I am not nearly as congested? How can I get my sense of smell back? It's making me pretty nervous. Thanks for any advice you have.