something sililar happened me about a year ago my entire body just dried up all my skin was flakey it was very upsetting , i think it was a combination of too much sugar and dehydration, at the time i was away on hols and therefore! theres a special cream you can get just go to a pharmacy, it has a pink and white tube but i cant remember the name, the pharmacist should know. See a dermatologist if it gets any worse and do not use any perfumed creams, oils, gels or makeup on it until it is completely gone. Also drink plenty of water.