[oceangypsy]

Yes, some animals will react to vaccines in this way. Keep an eye for tenderness, increased swelling or redness and fever. If all seems well, then it should go down on it's own over time. Sometimes, the vaccine gets into the layers of the skin as opposed to under the skin and this can leave a small bump.

 

[oceangypsy]

Exactly, I would not do anything with it, unless it seems to change or cause the dog pain.