Everytime I take a picture using my flash, the picture comes out all foggy

Remove the case you have on the phone that is reflecting light back from the flash back into the camera lens.

You're welcome. It's a common problem. Case designers need to design better.

The better designers are taking this into account. People should look at the case they are about to purchase. If the case comes within about an 1/8 inch of the flash, it's apt to be a problem.