smacking of the lips, grinding of the teeth, drooling and lameness cased by development of sores and blisters (vesicles) in the mouth, on the tongue and nose and/or between the claws and coronary band
clecian gwefusau, crensian dannedd, glafoeri a chloffni sy'n cael eu hachosi gan friwiau a phothelli (fesiclau) yn y geg, ar y tafod a'r trwyn a/neu rhwng y carnau a chefn bonion y carnau