Tooth pain ?

If you can't get something medical to help relieve the pain then you're just going to have to deal with it via other methods.
Sometimes cool liquid like water can help... Maybe eating softer foods and things until they can help as well.
Sadly, you're just going to have to keep your mind off it, if it's going to take that long to get something done about it.

if the ER won't give you something for it, can you visit a doctor/dentist and get a prescription for something?