Should I give up on rice?

@samyeah

the myth of rice as a tool for any kind of immersion accident has long been laid to rest as totally bogus. Rice does not work. It is the equivalent of doing absolutely nothing.

The only way of getting anything accomplished with a phone that suffered damage like yours, is by removal of the battery as quickly as possible. No, it is not a good idea to try to turn it on, to charge it or to use it in any other way. This will increase the risk of short circuiting the phone. It needs to be completley disassembled and properly cleaned. One can use 90%+ isopropyl alcohol and a soft brush or, and way better, to use an ultrasonic cleaning. After that it gets properly dried and reassemble with a new battery. All these steps are necesarry to ensure that your phone stands a chance to be resurrected. Even with all that there is still a chance it will never work again. At least give it a try.