My nd has me on a sulfur supplement. The matrix study natural sulfur. I think it's making me worse. My symptoms are worsening after just 2 rounds of dmsa. Please if anyone knows if this is bad let me know. I questioned her today and she said because it is a food it would not interrupt my dmsa protocol. I, beginnning to wonder if she knows about this. I'm sick. I keep telling her. My yeasts symptoms were doing so good. Now they are back.