Hi everyone, We all know about allergies and what antihistamines do to the cords, but I was asked about a specific substanc to see if it interferes with singing? I have a student recovering from nodules who on top of that has allergies to deal with. I need some helps from the docs on the list! The substance is an expectorant called Guaifenesin, contained for example in Duratuss. Does it affect the vocal mechanism and if so, how? Thanks a lot, Rocio |