Everyone... And I mean everyone, really needs to just talk to their Dr or their vet and see if they can get a small pill bottle full (or if the Dr is really cool, an entire regular container) of silver cream for emergencies like these.
I keep some on hand just in case. I haven't had to use any in a couple years other than on my own bites and wounds but it really is the best thing to have around.
Also, if you have an older diabetic family member who requires daily blood sugar testing and daily medication, chances are they will already have some. Since diabetics don't heal right and are prone to infection, Drs often prescribe them silver cream ointment for wounds.