Hi all, I tried something and it worked really well so I wanted to share it. A simple description of a Batholin's cyst is that mucus or secretions can't drain properly. I wondered if guaifenesin, which is used to thin chest mucus, might thin the mucus of a Batholin cyst. I went to the drug store and bought generic expectorant with only guaifenesin. Of the ones available, I bought the ones with the highest guaifenesin content. I took three pills which was more than directed. Within eight hours, out of no where, I noticed my underwear was wet. The cyst had drained.