To me flares are milder and usually just mild tingling, tightness, weakness and an unwell feeling. To me an exacerbation is the big one (elizabeth...remember Sanford & Son?)

Exacerbations from hell, I call them, last longer hurt more and you feel helpless and scared. It's such a relief when they go away that, you think you're cured. Then the smaller flares come along to remind you that your MS is progressing right along..

Take a deep breath CB..