I have had shingle blisters for six days. The starting area never oozed, but look like it's crusting over. Do the blisters have to open and ooze to crust over? I have taken prescription medication since day three. I have waves of pain, but no itching whatsoever. Before the rash, I did have three days to serious pain in the affected area. Also, may I go out into the public. I have stayed at home because I work at a store and the doctor told me I could pass on chicken pox until the scabbing process begins. Can I go out grocery shopping without worrying about affecting someone?