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.
You can't catch shingles from someone who has the disease. But if you've never had chickenpox, you can be infected with the virus that causes shingles - and come down with chickenpox. The virus is spread not by sneezing, coughing, or causal contact, but by direct contact with the fluid from blisters caused by the rash that characterizes shingles.