mike, follow this "you need to treat it for the water damage. Disassemble your iPod by using [http://www.ifixit.com/Device/iPod_Touch_4th_Generation#guideList|these guides.] Then clean it using isopropyl alcohol and a soft brush, just like [guide|5825|it is shown here.] That guide was written for a iPhone, but all the steps still apply to your iPod. After that '''replace the battery''', reassemble your iPod and re-evaluate for further, if any, damage. Hope this helps, good luck.