Im not really sure what you can take that wont interfere with the meds. i would call the pharmisist and askthem. thats what they are there for!! Also make sure you are drinking LOTS of fluids.. nothing caffinated or bubbly. That means no soda , tea coffee.. cause that will only dehydrate you and make your cold worse!!
Hope you are feeling better... i woke up with a swollen face, looks like i have an abcess on one of my bottom teeth. So i look like a chip monk on one side of my face. But the good thing is that it doesnt hurt much and that i had a refill on anitbiotics from my back surg!!
Have a great sunday!!
Bryn