I have seen all the images that you have attached and came to a conclusion that these are the patches of vitiligo. I will recommend you to look for a dermatologist in your area or else you can take homeopathic treatment online from Dr. Rajesh Shah at Life Force Homeopathy Center. It will help to reduce the white patches from your body and you will get the relief from that itchiness. Don't try any other cosmetic creams on those patches, it can make it worse.