yes you probably should. as you know shingles is contagious during the blister phase. your grandchildren would be susceptible to getting chickenpox from coming in contact with your blisters. (or from you touching your blisters and then touching your grandkids. ) after the active blister phase passes you can keep the rash covered as a precaution. so sorry you're going through shingles right now at the holidays! that seems very unfair! take care.
my grandkids have not had chickenpox or the vaccine i have just started to blister should i stay away from them?