I had rashes during and lot more after my last 10 day fast. I think your body is still detoxing. I think you should refeed for another 10 days and be on a diet with fruits and vegetables. If you have not done a Liver Flush, consider doing one after a few weeks. Skin problems mean your liver is not working well. Do not use soap or other chemicals on your skin.
My body rashes took one month to disappear totally after I started refeeding, hope this helps.