water damaged/wont charge and mic broken

My wife threw Iphone in wash with my pants, I let it sit in rice for 2 days, when I turned on everything worked but battery wouldn't charge, I replaced battery and it still wouldn't charge when I plugged in, in synced to computer but the battery symbol always had a plug in its logo, also the mic didn't work at all either when calling or trying to record something. I switched out the battery dock and made sure all the connections were tight and nothings changed when I turned back on. Any suggestions? Thanks