Hello Jules !

It`s always difficult to treat a problem like this from a distance and the best thing you can do is consult a vet. homeopath or hom. vet. who can examine etc. your dog properly !

One thing you could try (safely) is Sulphur 30c, one dose twice a day, until distinct improvement (to be repeated if necessary). One dose (for a pitbull) is 2 tablets or 4 coarse pellets to be given dry in mouth. Wim.

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Wim