<human>: Hi, I was home for the Thanksgiving holiday this past weekend and on the Saturday evening succeeding Thanksgiving holiday, I noticed that my doggie's nose was quite swollen. 
I brushed it off as she's had little hiccups in her health in the past, nothing ever severe but she always bounced back within a couple days.
So the next morning I checked up on her, but she seemed very lethargic the entire day, unfortunately, I had to return to school that evening so I had my parents keep an eye on her, to make sure that she'd be okay.
I called my parents yesterday, asking about her.. She seemed to have regained her energy, but her swelling increased. The next day (today, 11/27) I drove an hour to visit her, and her swelling was terrible. 
She now looks like [this] 
She was really excited to see me and was jumping around like her normal self.. but I couldn't shrug off the swelling. So we're going to see the vet tomorrow.

In efforts to avoid the hassle that vets often do.. (they tend to charge like crazy) I was wondering if there's anything I need to know.. and to be frank, I'm worried out of my mind. Is there anything you guys can say to reassure me?

I'm afraid that the vet is going to charge for every darn little test.. I don't have a lot of experience with vets as I've been fortunate enough to have very healthy dogs in the past that have only needed their vaccine boosters, annual check ups, spays, dental check ups etc. 

I'm also afraid that this may be fatal.. She's a rescue puppy with a dark past, so she hasn't had the clearest nor cleanest med record.. but she's not young either. She's about 8-9 yrs old.

Any advice /r/dogs? You all know how much a dog means to a kid.

Give me a shortened version of the text
<bot>: My dog has a swollen noes and I'm going to the vet tomorrow, any advice as to what I should tell them/to reassure me that my dog will be ok?