A lump

And we noticed a lump on one of the sheep.
Cuthbert spends a lot of time sitting around

  but when you get closer the lump is more obvious

 And  after the Vet has been , its probably and infection and osteomyelitis in the jaw.

So  2 weeks of antibiotics and we shall see how he does.
But infections in the  jaw ( particularly actinomycosis - called lumpy jaw  )  can be difficult to eradicate .