a large lump has appeared on the back of neck on  my staffie bitch it's giving her no concern or scratching and yelps if i touch it its like a large ganglion or something came up tues but found a wasps nest could be connected ? she had booster about three weeks  ago in the and a worming tablet also. still hungry and playfull as normal.but when she had the booster she yelped a bit but it didn't swell then but the lump is in that area.

If worried then get checked out but this can be a reaction to the booster and can be a common thing.

im not overly worried just the booster was three weeks ago but it is in the same area as the injection

When did the lump come up ?

tuesday

perhaps worth checking out then?  as its a good few weeks after the booster isn't it

Is your dog microchipped by any chance ?, my dogs brother has a ganglion type lump where his chip is, but as has been said, get it checked out if your worried.

seems to be getting smaller today.

My dog had a swelling come up at the site of her booster quite a while after it was given. The vet knew exactly where he injects so confirmed it. I'm sure it will gradually go.