Speaker a bit quiet

I was taking a shower and my phone was near the shower, My shower has little spots where water can get through. When I finished showering I realised some water was on my phone so I dried it and other stuff like that, then I checked my phone and everything was perfect. But when I went to check the sound it's volume was a pretty quiet even though it was on full volume. I put off my phone and buried phone in rice now and inside and cupboard but I need some extra suggestions of what to do. Thanks