Check the label on the medicine for exact dosing instructions. 1  Take Xifaxan by mouth with or without food. 2  Xifaxan works best if it is taken at the same time each day. 3  Continue to take Xifaxan even if you feel well.  If you miss a dose of Xifaxan, take it as soon as possible.
Shingles is contagious and can be spread from an affected person to babies, children, or adults who have not had chickenpox. But instead of developing shingles, these people develop chickenpox. Once they have had chickenpox, people cannot catch shingles (or contract the virus) from someone else.
Are you contagious? Though people who haven't had chickenpox can catch that condition from you, the shingles itself isn't contagious. For reasons that experts don't really understand, the pain of shingles lingers for some. If the pain lasts for at least 3 months after the shingles rash has healed, a person is diagnosed with PHN. In some people, the pain will subside. In others, it won't.