Waterproofing DSLR

[grubber33270]

Very stupid choice i made today, I went to a structure fire while it was raining (pretty Heavily) today. guess i didnt know that my camera really is not made to work while raining. when i got home tried turning the camera on, it did not. i switched out the battery and it worked for 1 photo then turned off again. I am going to leave the battery out overnight and see if that dries it all out. if it doesn't work after tomorrow then i guess i am full blown screwed. but if it does (crossing my fingers) how can I waterproof the camera so if i do go on structure fires in the rain i wont have this issue again?