perhaps something got lost in the atlantic

if i read the original post correctly,the electrodes of the spark plug are oiling up.my reply explained that this is nothing to fear,as this end of the engine runs a bit hotter and the tolerances open up enough to allow a little oil past the piston rings.it may also allow this bore to glaze slightly,which again doesn't help oil control.
if the outside of the plug is covered by oil,then the corrective action you suggest is correct.and apologies to the original poster for misreading your plea for help