swollen paw/leg

[Colleen]

My pup came home yesterday limping after running her. I checked her foot and pad to make sure there wasn't any thorns or anything stuck in it. I couldn't see or feel anything. She didn't finish her dinner. And in just about 10 15 minutes, her foot began to swell. This morning its like twice its normal size, and it seems to be swelling up her leg too. It's so swollen her little toes are spread apart. She's still limping, but not as bad as yesterday, and it doesn't seem to bother her if I touch it. Ya think she's got something stuck in there, or could it be something with a tendon? Any ideas? Thanks ahead.

[Richard]

It could be a snake bite. If so, she should be ok in a day or so.