Coughing remedies?

MrsGreen620

I've had some major allergy issues (or a cold?  something else?) since Easter.  It started with sneezing and a sore throat from drainage.  Today it has been constant coughing.  I've got DH sleeping on the twin bed in baby's room because I'm coughing so much in my sleep.  Now I'm up for the second time tonight - trying to soothe my throat with some watermelon and red raspberry leaf tea.  

Throughout this week I've been taking a combination of Tylenol, Benadryl, and Sudafed.  I haven't been to a doctor, and didn't mention it to my midwife today because I figure it's just allergies.  Does anyone have a thought for something else that might help?