I have a persistent viral cough for 8 weeks now. It started with a week-long head cold then turned into this cough. I have no asthma, didn't have bronchitis, pneumonia, allergies etc. Clean bill of health, except for this cough. I cough up flem maybe once in 10 coughs. I've been on antibiotics in case it was bacterial, but to no avail. My question is, will a steam room help, or hinder?