Recurrence、 relapse、flare这仨个字都是复发的意思，它们有何区别。

Recurrence、 relapse、flare这仨个字都是复发的意思，它们有何区别。特别是它们出现在同一段落中，都译成复发就表达不出三者的区别。

查字典可查出它们的意思，甚至可解释其区别，关键是在下面的句子里如何翻译出来。

To describe the timing of myositis recurrence after a remission, descriptive terms were used: early flare, when recurrence of disease was noted while the patient was receiving a daily prednisone dose greater than 5 mg and/or was on another immunosuppressive therapy; late flare, when recurrence of disease was noted within a year of the definite lowering of daily prednisone to 5 mg or lower; early relapse, when recurrence of disease was noted more than a year after the definite lowering of daily prednisone to 5 mg or lower; and late relapse, when recurrence of disease was noted more than 5 years after the definite lowering of daily prednisone to 5 mg or lower.