Phone is stuck on a restart loop after after falling in water

Hi, last night I dropped my iPhone 6 Plus in hot water, I removed the iPhone from the water quickly, dried it with a towel, and it was fine. The first problem I encountered was that it said I had headphones in, but I fixed that with my headphones. My second problem was that my phone charged very slowly overnight, 23% in 6 hours. While getting on my bus, a message reading "Touch ID not accessible" appeared, and my Touch ID stopped working. I switched chargers when I got to school. After that everything seemed fine, I charged my phone when I got to school and it charged normally. Around 2 hours later, after my phone was done charging, my iPhone started the restart loop. I have attempted drying the case and removing it, drying and cleaning around the iPhone and case. What should I do???