I have been coughing on and off for the past three weeks. I took a z-pak antibiotic about two weeks ago and within three days felt better. I still have some sinus drainage and also feel that somethings in my chest. I have also been taking musinex on and off. At work I feel that I have a fever, when I get home and check,i don't. Today i've had this metal taste in my mouth and can not get rid of.

What is this metal taste in my mouth?


Please help.