wipers gone wild

[trashguy]

it rained heavy here for about 9 days straight,had the truck out today it wasnt raining and first my wipers start goin on by themself, then at one point the windshield washer starts going non stop with no wipers.
later on the rear washer starts goin on and off?
im guessing maybe with all the rain the wiper relay got soaked? im gonna check the relay box under the hood tomm,maybe blow it out with air .any other ideas on the cause?