My new puppy Blu, he is about 16 weeks, has a swollen lymphnode. I noticed it Saturday night, and it was about the size of maybe, 2-3 grapes together. Now, it appears to be the shape of a small peach. I have no emergency vets in my area. Not sure what to think or do? Does anyone have any advice? Anything over the counter that may help? He has a raspy bark, and isn't eating and drinking like he normally would.
Here is a pic:
