Hmmm, read up a few things about it. Thanks Dans.
I do have concerns about this, yes several items I have read state that bottle jaw is caused by worms or fluke, but actually there are many other things that could cause the same symptoms. By all means try the fluke medicine, but I would probably speak to my vet as well and ask for their advice. On my (quick) google search, I noted bottle jaw is also a symptom of Johnes disease, Coxy, just a plain abscess, an raised salivary gland! Mineral imbalances.....
Asking your local farmers will tell you if your local area is a likely risk for fluke. This isn't the time of year I would expect fluke to be bad, but then it as been so wet that it is completely possible this year.
Beth