Today when I walked up to my horse to give her, her wormer I noticed a bit of blood in her nostril. Now this isn't the first time that's happened since we've had her so I thought "hey no big deal". I get her out and I ride around some and she coughs a bit, that's not really that BIG of a deal as we just went for a run but she does do that on occasion as some horses do. When we are getting ready to feed and she comes up to me for some petting I pet under her jaw and I notice a little golf ball sized lump. And it was hard like a golf ball too. It's under her jaw where it's usually quishy, the odd part is maybe it's related to the bloody nose? As it was on the same side that the nostril bled on. Definitely probably going to have to call out a vet to be sure. But any suggestions? Anything I can do until then? Such as penicillin(sp?) shot?