iPhone went through wash - charging flashligh comes on Someone, please help me I really don't want to buy a new iPhone! Also it isn't recognised by iTunes.
Check if you able to power on the device after making sure that it's sufficiently dried.

In case the device isn't powering, unfortunately, there's nothing much you can do. Liquid damage to iPhone or iPod isn't covered by warranty.

Still, it would be advisable to get in touch with authorised service personnel to check for the extent of damage and to evaluate recovery options.