A blood pressure med called Lotensin also causes coughs. My pharmsist and doctor informed me of it before I started taking it and sure enough it did. The cough lasted a few months and would return occasionally in very small amounts.

My daughters cough was much worse. She also had to have antibiotics many times to clear her lungs as we struggled to figure out what was causing their problem for that full miserable ten months back in 1993. My sons cough was less but as he got older if he tapped into a new source of chlorine (accidently), and had a cold he was in bad shape.
I hope this information I've posted might help others. We got no help and suffered and had to figure it out on our own. I's a miracle that I figured it out and thank God my children never used chlorine water in formula or juice etc as infants. If they had they probably would not have made it.
(Chlorine came to our water supply when they were 3 and 6 years old. Call your water co.)

I really really worry and hope parents are not putting tap water (with chlorine) into their newborns formulas or putting it into their baby bottles etc. Very sick babies could be happening everywhere and no one knows why and its just because of the chlorine.
Good luck to all.