Most oil-rubbed or penetrating seal finishes can be easily repaired. Touch up jobs on varnished, lacquered or painted surfaces are likely to appear patched. Extensive damage in these finishes should be repaired by a professional.
If spot removal changes the luster of a finish, rub the entire surface with a mixture of pumice or rottenstone mixed with boiled linseed oil. Rottenstone is finer and will give a higher polish. Always rub in the direction of the wood grain. Use the palm of your hand or a soft cloth. If mixture becomes sticky, add a few drops of mineral spirits. Finish by wiping off the mixture and buffing with a clean cloth. Oil should be almost completely buffed off. If wax desired, wait for 48 hours.