'''++@cschroeder++''' okay first off you need to know that Rice '''absolutely, positively, 100% does not work'''. It does not do '''ANYTHING''' and will only give you a false sense of security. Check on here https://www.riceisfordinner.com/ for a good explanation.
Next. You will need to totally disassemble your Shuffle. Use these guides [[Topic:iPod Shuffle 1st Generation]] Once disassembled you have to clean it properly. Use something like this guide [guide|5825] It was written for an iPhone but all the points still apply to your shuffle as well. You will need to use a high grade of isopropyl alcohol so it cleans and evaporates properly without leaving conductive matter behind. Once it is properly cleaned, you must replace the battery. There is no way around it. It will give you issues if you do not.
Even with all of this, it may never be that same again. Water damage is the most complicated to repair since you really never know where and what part may have shorted out etc. At this time you got nothing to lose, so might as well just give it a good try and see what the outcome will be.