whatever the text is preceding this, I am sure it would make more sense with more context:

"...underarm perspiration may be continuous or episodic/in fases ..."

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Note added at 12 mins (2009-07-25 09:32:43 GMT)
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(As in 2nd def. below of "episodic"):

Adapted From: WordNet 2.0 Copyright 2003 by Princeton University. All rights reserved.

episodic
A adjective
1 episodic

limited in duration to a single episode; "an account concerned primarily with episodic events such as the succession of rulers"

2 episodic, occasional

occurring or appearing at usually irregular intervals; "episodic in his affections"; "occasional headaches"

3 episodic

of writing or narration; divided into or composed of episodes; "the book is episodic and the incidents don't always hang together"


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Note added at 13 mins (2009-07-25 09:33:51 GMT)
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Or can simply say :
"UNDERARM PERSPIRATION MAY BE CONTINUOUS OR OCCASIONAL"