What is wrong with my Camera now?

I accidently left my Fujifilm Finepix in its case out in a light rain, I found it a couple days later. It gave me a little trouble that day and then it worked just fine. Well yesterday I tried to use it and now it acts like it wants to cut on but wont and the lens will come out and get stuck and the screen is black. What could possibly be wrong and can it be fixed? Are the Manuf able to tell if there is water damage or not? From time its been in the rain till now its been over a month. Can someone please help me?