Is there any way I can fix the master power switch in my 1999 Rodeo?

The power switch must have gotten rain in it. Is there any way I can fix the shortages or do I have to completely replace the switch?
Update: The power switch must have gotten rain in it. Is there any way I can fix the shortages or do I have to completely replace the switch? I at least need to get my window rolled up, any suggestions or MacGuyver tricks?
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