I know how you feel and I had that cough for over 2 weeks....no fun.
Dr. Bermans J. Iskandar MD is in your state and is a Dr you may want to research.,,other members here that have been to,and treated by this Dr liked him,,,,,so do check him out.
His address and contact info-
600 Highland Ave.
Madison, WI 53792-0001
(608)263-6420
Hi and welcome to the Chiari forum.
The cough should not be dangerous.....but is quite painful. I just had that virus too and you will want to take a suppressant to help reduce how much you cough.....a cold or virus can trigger symptoms to increase as can stress from our daily lives.....anything can cause the symptoms to change.
Do you have a true Chiari specialist that you are seeing? Have you had a recent MRI?