In my experience there is not a diet that helps not of pemphigus. What if there are two types of diets a to not irritate the wounds in the mouth that do not eat citrus, irritating, in my case banana, bread, soft drinks. (when there are no injuries you can eat everything. It does not irritate)
The second diet is to avoid as much as possible the swelling from the prednisone and is not to consume salt, flour and sugar.