My nikon d3100 lens is steamed up

I got a new nikon d3100 for my photography in college but i went out to do a skate edit.
The internal lens where the eyepiece is has steamed up probably due to temperature because it was cold.
How can i fix this? Thanks.

Added (1). Edit: the steam has cleared up.

Take the camera back or take it back under warranty. OR TAKE IT TO AN EXPERT, don't open the lens else you might muck it up and do irreparable damage. Just take it back or take it to an expert.

It may be due to a sudden temperature change. If so it will clear within an hour at room temp.

The best way of drying out your camera is to buy a quantity of Silica Gel and put your camera is a suitably sized polythene bag together with the Silica Gel and seal the bag tight. Leave the camera in the bag for as long as it takes to remove the dampness. If, after a period of time the dampness is still present, take the Silica Gel and dry it out in the oven and repeat the process till all the dampness has gone. Always let your camera acclimatise itself before using it.