Relapse/Residual who knows

I think the term relapse is not the best.. But I had new nerve damage or demylination in that short or time, hence I called it a relapse.. I think residuals is the medical term people and doctors are throwing out there too often instead of making sure of a correct diagnosis… This I think is especially true if the original diagnosis is gbs, only later to find out the patient had cidp for example..deanop