Barpole and liver fluke worms cause bottle jaw..you will need to use a wormer that addresses these two worms, only Valbazen 1 cc per 10# or Ivomec plus 1 cc per 40# sub q kill both....3 times 10 days apart then once again in 30 days
CD Antitoxin to cut down on toxins the dead worms can produce
with bottle jaw there is usually anemina..you need to treat for this as well
red cell 6 cc per 100# double day one, reg dose daily for a week then once a week until better
B 12 shots daily or b complex PLUS daily
high protien feeds (unless he has the runs) alfalfa and green leaves to help rebuild red blood cells
mix 50/50 ACV with water and drench 20CC daily
keep the goat as stress free as you can..meaning dont chase to medicate or leave to be bullied by others..pen seperate if you can...
Is the entire jaw swollen? Or is it just a small area? Entire area, dunno for sure. Small area....looks almost a boil or pimple is CL. Worming for that won't do you much good. Get them separated from the rest of the herd cause when it erupts, you will contaminate everyone else.
Worm as needed once you get this under control...regular fecals will help ..we do worm befrre breeding and Mom right after kidding..and we do worm new goats and those being sold because thr stressof these can weaken immune system and open door ways for worm over load..usually treating worms this way I rarely have a need to worm additionally..Best wishes