Debzie - hope the witch has backed off a little and you are not too sore. I have started taking Robutussin. You have to get the one with no added extras, just guaifenesin.
Found this on one of the few website I could access. - Many cough and cold medicines contain antihistamines that also work systemically in your body but have the reverse effect. They dry up mucus and diminish wet cervical fluid. Other active ingredients to avoid include dextromethorphan (a cough suppressant) and alcohol, so check labels carefully.
If you're taking the liquid form of guaifenesin, take two teaspoons three times a day around the time of month you're expecting to ovulate. It's best to take it from the first day you notice any type of wetness in your cervical mucus through to when you get any indication of ovulation, be that an LH surge or rise in oestrogen, confirmed by an OPK, or until the day of your change in body temperature if you are charting. That may be for about a week.