My wife, 66 years, suffered a intracerebral brain hemorrhage stroke more than a year ago. She is not under any medication for this other than her regular drugs for diabetics and hypertension. She still feels numbness around her right cheeks and continues to feel bitter taste in her saliva. Is this a common phenomena as some doctors say? Is there any medicine that can help to improve without much side effects? (She is too sensitive to most of the common medications.)